diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-baseline-horiz-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-baseline-horiz-1.xhtml
index 3119be7b13c7..ba8b128415be 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-baseline-horiz-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-baseline-horiz-1.xhtml
@@ -10,9 +10,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Baseline alignment of block flex items with 'baseline' value for 'align-items' / 'align-self'</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#baseline-participation"/>
     <link rel="match" href="flexbox-align-self-baseline-horiz-1-ref.xhtml"/>
     <style>
       .flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-1-block.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-1-block.xhtml
index c6fe60ab9578..1c2b058b6766 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-1-block.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-1-block.xhtml
@@ -7,9 +7,9 @@
      values included on different items within a flex container. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing the behavior of 'align-self' property values on flex items that are blocks, in a horizontal flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#align-items-property"/>
     <link rel="match" href="flexbox-align-self-horiz-1-ref.xhtml"/>
     <style>
       .flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-1-table.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-1-table.xhtml
index 6549927398e4..b9cd7e507d40 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-1-table.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-1-table.xhtml
@@ -7,7 +7,7 @@
      values included on different items within a flex container. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing the various 'align-self' property values on flex items that are tables</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
     <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
     <link rel="match" href="flexbox-align-self-horiz-1-ref.xhtml"/>
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-2.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-2.xhtml
index efc4f67f7537..a99171451111 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-2.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-2.xhtml
@@ -8,9 +8,9 @@
      margin/border/padding values on each item. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing the behavior of 'align-self' with a horizontal flex container, with margin/padding/border on the items</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#align-items-property"/>
     <link rel="match" href="flexbox-align-self-horiz-2-ref.xhtml"/>
     <style>
       .flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-3.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-3.xhtml
index 1457f1d60b59..0b8abaab33e3 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-3.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-3.xhtml
@@ -8,9 +8,9 @@
      flex container being shorter than its items. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing the behavior of 'align-self' with a horizontal flex container that's shorter than its items</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#align-items-property"/>
     <link rel="match" href="flexbox-align-self-horiz-3-ref.xhtml"/>
     <style>
       .flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-4.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-4.xhtml
index ddee25a87ca4..968fe36aed9b 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-4.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-4.xhtml
@@ -8,9 +8,9 @@
      flex container being shorter than its items. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing the behavior of 'align-self' with a horizontal flex container that's shorter than its items, with margin/padding/border on the items</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#align-items-property"/>
     <link rel="match" href="flexbox-align-self-horiz-4-ref.xhtml"/>
     <style>
       .flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-5.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-5.xhtml
index d7f13a087255..4fa3f552d1a1 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-5.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-horiz-5.xhtml
@@ -9,9 +9,9 @@
      after the auto margins are resolved).  -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing the behavior of 'align-self' with auto margins in play, in a horizontal flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#auto-margins"/>
     <link rel="match" href="flexbox-align-self-horiz-5-ref.xhtml"/>
     <style>
       .flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-1.xhtml
index d062224408ec..edaa7c8d269e 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-1.xhtml
@@ -7,9 +7,9 @@
      values included on different items within a flex container. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing the behavior of 'align-self' property values on flex items that are blocks, in a vertical flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#align-items-property"/>
     <link rel="match" href="flexbox-align-self-vert-1-ref.xhtml"/>
     <style>
       .flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-2.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-2.xhtml
index 64a02a7dec6e..acc7281616c0 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-2.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-2.xhtml
@@ -8,9 +8,9 @@
      margin/border/padding values on each item. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing the behavior of 'align-self' with a vertical flex container, with margin/padding/border on the items</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#align-items-property"/>
     <link rel="match" href="flexbox-align-self-vert-2-ref.xhtml"/>
     <style>
       .flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-3.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-3.xhtml
index 2cb76cec6c02..4133848e91e5 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-3.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-3.xhtml
@@ -8,9 +8,9 @@
      flex container being skinnier than its items. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing the behavior of 'align-self' with a vertical flex container that's skinnier than its items</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#align-items-property"/>
     <link rel="match" href="flexbox-align-self-vert-3-ref.xhtml"/>
     <style>
       .flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-4.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-4.xhtml
index d222176fe411..0215166917f8 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-4.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-4.xhtml
@@ -8,9 +8,9 @@
      flex container being skinnier than its items. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing the behavior of 'align-self' with a vertical flex container that's skinnier than its items, with margin/padding/border on the items</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#align-items-property"/>
     <link rel="match" href="flexbox-align-self-vert-4-ref.xhtml"/>
     <style>
       .flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-rtl-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-rtl-1.xhtml
index 1fbab59e6918..ad6f85934e21 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-rtl-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-rtl-1.xhtml
@@ -8,9 +8,9 @@
      "direction: rtl" to swap the horizontal (cross) axis. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing the behavior of 'align-self' property values on flex items that are blocks, in a vertical flex container with 'direction: rtl'</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#align-items-property"/>
     <link rel="match" href="flexbox-align-self-vert-rtl-1-ref.xhtml"/>
     <style>
       .flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-rtl-2.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-rtl-2.xhtml
index 69794a8a428e..185ea6a94468 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-rtl-2.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-rtl-2.xhtml
@@ -9,9 +9,9 @@
      the horizontal (cross) axis item. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing the behavior of 'align-self' with a vertical flex container, with margin/padding/border on the items and with 'direction: rtl'</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#align-items-property"/>
     <link rel="match" href="flexbox-align-self-vert-rtl-2-ref.xhtml"/>
     <style>
       .flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-rtl-3.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-rtl-3.xhtml
index 03a3d486e329..2f27b6474ce3 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-rtl-3.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-rtl-3.xhtml
@@ -9,9 +9,9 @@
      swap the horizontal (cross) axis. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing the behavior of 'align-self' with a vertical flex container that's skinnier than its items and  with 'direction: rtl'</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#align-items-property"/>
     <link rel="match" href="flexbox-align-self-vert-rtl-3-ref.xhtml"/>
     <style>
       .flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-rtl-4.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-rtl-4.xhtml
index 184bf04f7116..ab3017fc1859 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-rtl-4.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-align-self-vert-rtl-4.xhtml
@@ -9,9 +9,9 @@
      swap the horizontal (cross) axis. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing the behavior of 'align-self' with a vertical flex container that's skinnier than its items, with margin/padding/border on the items and with 'direction: rtl'</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#align-items-property"/>
     <link rel="match" href="flexbox-align-self-vert-rtl-4-ref.xhtml"/>
     <style>
       .flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-align-self-baseline-horiz-1.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-align-self-baseline-horiz-1.html
index deedeecaa1dd..fd67212fe31b 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-align-self-baseline-horiz-1.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-align-self-baseline-horiz-1.html
@@ -12,9 +12,9 @@
 -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing the baseline of a horizontal flex container with baseline-aligned flex items</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-baselines">
   <link rel="match" href="flexbox-baseline-align-self-baseline-horiz-1-ref.html">
   <meta charset="utf-8">
   <style>
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-align-self-baseline-vert-1.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-align-self-baseline-vert-1.html
index 2293a4651f88..9192d8cb248d 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-align-self-baseline-vert-1.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-align-self-baseline-vert-1.html
@@ -12,9 +12,9 @@
 -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing the baseline of a vertical flex container with baseline-aligned flex items</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-baselines">
   <link rel="match" href="flexbox-baseline-align-self-baseline-vert-1-ref.html">
   <meta charset="utf-8">
   <link rel="stylesheet" type="text/css" href="support/ahem.css" />
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-empty-1a.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-empty-1a.html
index a1bfb5fa5232..a9c4810beae1 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-empty-1a.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-empty-1a.html
@@ -14,9 +14,9 @@
 -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing the baseline of an empty horizontal flex container</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-baselines">
   <link rel="match" href="flexbox-baseline-empty-1-ref.html">
   <meta charset="utf-8">
   <link rel="stylesheet" type="text/css" href="support/ahem.css" />
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-empty-1b.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-empty-1b.html
index c7edbbd0e95c..adec8ec26d21 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-empty-1b.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-empty-1b.html
@@ -14,9 +14,9 @@
 -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing the baseline of an empty vertical flex container</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-baselines">
   <link rel="match" href="flexbox-baseline-empty-1-ref.html">
   <meta charset="utf-8">
   <link rel="stylesheet" type="text/css" href="support/ahem.css" />
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-multi-item-horiz-1.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-multi-item-horiz-1.html
index 46b7c46bac92..8480981ff5a5 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-multi-item-horiz-1.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-multi-item-horiz-1.html
@@ -13,9 +13,9 @@
 -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing the baseline of a horizontal flex container whose flex items are not baseline-aligned</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-baselines">
   <link rel="match" href="flexbox-baseline-multi-item-horiz-1-ref.html">
   <meta charset="utf-8">
   <style>
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-multi-item-vert-1.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-multi-item-vert-1.html
index 966a35fcd91e..2a669c980ea4 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-multi-item-vert-1.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-multi-item-vert-1.html
@@ -13,9 +13,9 @@
 -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing the baseline of a vertical flex container whose flex items are not baseline-aligned</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-baselines">
   <link rel="match" href="flexbox-baseline-multi-item-vert-1-ref.html">
   <meta charset="utf-8">
   <link rel="stylesheet" type="text/css" href="support/ahem.css" />
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-single-item-1a.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-single-item-1a.html
index 7825aeb8a061..3ff1fbf8490b 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-single-item-1a.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-single-item-1a.html
@@ -13,9 +13,9 @@
 -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing the baseline of a horizontal flex container with one flex item</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-baselines">
   <link rel="match" href="flexbox-baseline-single-item-1-ref.html">
   <meta charset="utf-8">
   <style>
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-single-item-1b.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-single-item-1b.html
index c6fc124810e8..896231c05931 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-single-item-1b.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-single-item-1b.html
@@ -13,9 +13,9 @@
 -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing the baseline of a vertical flex container with one flex item</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-baselines">
   <link rel="match" href="flexbox-baseline-single-item-1-ref.html">
   <meta charset="utf-8">
   <style>
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-block-horiz-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-block-horiz-1.xhtml
index dc4d681fcee4..7abf2da7b693 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-block-horiz-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-block-horiz-1.xhtml
@@ -7,9 +7,9 @@
      various "flex" values and various combinations of the items. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing flexbox layout algorithm property on block flex items in a horizontal flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-basic-block-horiz-1-ref.xhtml"/>
     <style>
       div { height: 100px; }
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-block-vert-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-block-vert-1.xhtml
index f4c207e673d1..ba63bc464e8c 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-block-vert-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-block-vert-1.xhtml
@@ -7,9 +7,9 @@
      various "flex" values and various combinations of the items. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing flexbox layout algorithm property on block flex items in a vertical flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-basic-block-vert-1-ref.xhtml"/>
     <style>
       div { width: 50px; }
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-canvas-horiz-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-canvas-horiz-1.xhtml
index eb910e56e713..a54207caf031 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-canvas-horiz-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-canvas-horiz-1.xhtml
@@ -8,9 +8,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing flexbox layout algorithm property on canvas flex items in a horizontal flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-basic-canvas-horiz-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-canvas-vert-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-canvas-vert-1.xhtml
index c49dc5fb7014..961d5f5e0a30 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-canvas-vert-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-canvas-vert-1.xhtml
@@ -8,9 +8,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing flexbox layout algorithm property on canvas flex items in a vertical flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-basic-canvas-vert-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-fieldset-horiz-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-fieldset-horiz-1.xhtml
index 9fde4ede34dd..842c388927ef 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-fieldset-horiz-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-fieldset-horiz-1.xhtml
@@ -8,9 +8,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing flexbox layout algorithm property on fieldset flex items in a horizontal flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-basic-fieldset-horiz-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-fieldset-vert-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-fieldset-vert-1.xhtml
index 6d02b5189f89..2dd191f88ab1 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-fieldset-vert-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-fieldset-vert-1.xhtml
@@ -8,9 +8,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing flexbox layout algorithm property on fieldset flex items in a vertical flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-basic-fieldset-vert-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-iframe-horiz-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-iframe-horiz-1.xhtml
index c1da20d61a33..8ef252bc042f 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-iframe-horiz-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-iframe-horiz-1.xhtml
@@ -8,9 +8,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing flexbox layout algorithm property on iframe flex items in a horizontal flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-basic-iframe-horiz-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-iframe-vert-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-iframe-vert-1.xhtml
index 2dd2ff656718..ffd252116ad3 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-iframe-vert-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-iframe-vert-1.xhtml
@@ -8,9 +8,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing flexbox layout algorithm property on iframe flex items in a vertical flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-basic-iframe-vert-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-img-horiz-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-img-horiz-1.xhtml
index 8e66ec4413e4..0ac1ea81f24f 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-img-horiz-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-img-horiz-1.xhtml
@@ -8,9 +8,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing flexbox layout algorithm property on img flex items in a horizontal flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-basic-img-horiz-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-img-vert-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-img-vert-1.xhtml
index 7f6b2649db05..cdaf5448ce40 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-img-vert-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-img-vert-1.xhtml
@@ -8,9 +8,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing flexbox layout algorithm property on img flex items in a vertical flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-basic-img-vert-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-textarea-horiz-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-textarea-horiz-1.xhtml
index 69d27ea16f01..3e9fd44c3b50 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-textarea-horiz-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-textarea-horiz-1.xhtml
@@ -8,9 +8,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing flexbox layout algorithm property on textarea flex items in a horizontal flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-basic-textarea-horiz-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-textarea-vert-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-textarea-vert-1.xhtml
index a87d0b9005e2..ffd7f6ddf28a 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-textarea-vert-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-textarea-vert-1.xhtml
@@ -8,9 +8,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing flexbox layout algorithm property on textarea flex items in a vertical flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-basic-textarea-vert-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-video-horiz-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-video-horiz-1.xhtml
index 69b075e97bf1..ad004099cd40 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-video-horiz-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-video-horiz-1.xhtml
@@ -8,9 +8,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing flexbox layout algorithm property on video flex items in a horizontal flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-basic-video-horiz-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-video-vert-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-video-vert-1.xhtml
index a053435258c9..eb26895feae2 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-video-vert-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-basic-video-vert-1.xhtml
@@ -8,9 +8,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing flexbox layout algorithm property on video flex items in a vertical flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-basic-video-vert-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-items-as-stacking-contexts-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-items-as-stacking-contexts-1.xhtml
index e33d8fb1d6fc..2209345c51b9 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-items-as-stacking-contexts-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-items-as-stacking-contexts-1.xhtml
@@ -8,9 +8,9 @@
      stacking contexts. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing that 'z-index' property makes flex items form stacking contexts</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#painting"/>
     <link rel="match" href="flexbox-items-as-stacking-contexts-1-ref.xhtml"/>
     <style>
       .flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-items-as-stacking-contexts-2.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-items-as-stacking-contexts-2.html
index 46633e784ceb..df00f5d57e0d 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-items-as-stacking-contexts-2.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-items-as-stacking-contexts-2.html
@@ -12,9 +12,11 @@
      ordering - specifically, the properties "position", "z-index", and
      "order" on flex items.
  -->
+<!-- This was resolved by the CSSWG in April 2013:
+     http://krijnhoetmer.nl/irc-logs/css/20130403#l-455 -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing that flex items paint as pseudo-stacking contexts (atomically, in the absence of 'z-index' on descendants)</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
   <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
   <link rel="match" href="flexbox-items-as-stacking-contexts-2-ref.html">
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-items-as-stacking-contexts-3.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-items-as-stacking-contexts-3.html
index 56023b349988..96923c3646ae 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-items-as-stacking-contexts-3.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-items-as-stacking-contexts-3.html
@@ -8,9 +8,11 @@
      inside of one flex item should be able to iterleave between pieces of
      content in another flex item, if we set appropriately interleaving
      "z-index" values. -->
+<!-- This was resolved by the CSSWG in April 2013:
+     http://krijnhoetmer.nl/irc-logs/css/20130403#l-455 -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing that flex items paint as pseudo-stacking contexts, instead of full stacking contexts ('z-index' should let descendants interleave)</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
   <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
   <link rel="match" href="flexbox-items-as-stacking-contexts-3-ref.html">
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-1.xhtml
index 5b00964d259d..863d53e9e7b0 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-1.xhtml
@@ -7,9 +7,9 @@
      testing each possible value of the 'justify-content' property. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing 'justify-content' in a horizontal flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#justify-content-property"/>
     <link rel="match" href="flexbox-justify-content-horiz-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-2.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-2.xhtml
index dfe3b064bd2c..5fbbc63b7cc5 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-2.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-2.xhtml
@@ -8,9 +8,9 @@
      flex items. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing 'justify-content' in a horizontal flex container, with margins/border/padding on flex items</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#justify-content-property"/>
     <link rel="match" href="flexbox-justify-content-horiz-2-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-3.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-3.xhtml
index e5fb98363e05..fac1dd6679c8 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-3.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-3.xhtml
@@ -14,9 +14,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing 'justify-content' in a horizontal flex container, and its effects on flex items that overflow</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#justify-content-property"/>
     <link rel="match" href="flexbox-justify-content-horiz-3-ref.xhtml"/>
     <style>
       body { margin-left: 100px; } /* So we can see left-overflowed stuff */
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-4.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-4.xhtml
index 54479c4196aa..d1a2dc822f21 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-4.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-4.xhtml
@@ -14,9 +14,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing 'justify-content' in a horizontal flex container, and its effects on flex items that overflow, with margins/border/padding on flex items</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#justify-content-property"/>
     <link rel="match" href="flexbox-justify-content-horiz-4-ref.xhtml"/>
     <style>
       body { margin-left: 100px; } /* So we can see left-overflowed stuff */
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-5.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-5.xhtml
index 6492074eb101..480431d5d938 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-5.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-horiz-5.xhtml
@@ -7,9 +7,9 @@
      property, in an auto-sized horizontal flex container. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing 'justify-content' in an auto-sized vertical flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#justify-content-property"/>
     <link rel="match" href="flexbox-justify-content-horiz-5-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-1.xhtml
index e1ace308ea59..6540380f5e28 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-1.xhtml
@@ -7,9 +7,9 @@
      the 'justify-content' property. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing 'justify-content' in a vertical flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#justify-content-property"/>
     <link rel="match" href="flexbox-justify-content-vert-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-2.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-2.xhtml
index c06d3da8907f..ac8cd69b09d5 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-2.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-2.xhtml
@@ -8,9 +8,9 @@
      flex items. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing 'justify-content' in a vertical flex container, with margins/border/padding on flex items</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#justify-content-property"/>
     <link rel="match" href="flexbox-justify-content-vert-2-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-3.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-3.xhtml
index 6b7346b034f2..caf46eaf5fe4 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-3.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-3.xhtml
@@ -15,9 +15,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing 'justify-content' in a vertical flex container, and its effects on flex items that overflow</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#justify-content-property"/>
     <link rel="match" href="flexbox-justify-content-vert-3-ref.xhtml"/>
     <style>
       body { margin-top: 100px; } /* So we can see top-overflowed stuff */
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-4.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-4.xhtml
index 14d4533c7caa..514f61184c34 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-4.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-4.xhtml
@@ -15,9 +15,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing 'justify-content' in a vertical flex container, and its effects on flex items that overflow, with margins/border/padding on flex items</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#justify-content-property"/>
     <link rel="match" href="flexbox-justify-content-vert-4-ref.xhtml"/>
     <style>
       body { margin-top: 100px; } /* So we can see top-overflowed stuff */
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-5.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-5.xhtml
index bf6bd75403b0..bd5fc45d8164 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-5.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-justify-content-vert-5.xhtml
@@ -10,9 +10,9 @@
      in this testcase. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing 'justify-content' in an auto-sized vertical flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#justify-content-property"/>
     <link rel="match" href="flexbox-justify-content-vert-5-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-margin-auto-horiz-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-margin-auto-horiz-1.xhtml
index 4728f2e1e7b5..6b19241b0e39 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-margin-auto-horiz-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-margin-auto-horiz-1.xhtml
@@ -7,9 +7,9 @@
      with margin-left and/or margin-right set to 'auto'. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing horizontal auto margins on flex items in a horizontal flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#auto-margins"/>
     <link rel="match" href="flexbox-margin-auto-horiz-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-margin-auto-horiz-2.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-margin-auto-horiz-2.xhtml
index f814943f552a..e1acd3a87505 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-margin-auto-horiz-2.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-margin-auto-horiz-2.xhtml
@@ -7,9 +7,9 @@
      with margin-top and/or margin-bottom set to 'auto' on flex items. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing vertical auto margins on flex items in a horizontal flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#auto-margins"/>
     <link rel="match" href="flexbox-margin-auto-horiz-2-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-1-reverse.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-1-reverse.xhtml
index c26779bf52bd..75cf4fd54525 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-1-reverse.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-1-reverse.xhtml
@@ -7,9 +7,9 @@
      reverse the flex container's main axis. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing borders on flex items in a row-reverse horizontal flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-mbp-horiz-1-reverse-ref.xhtml"/>
     <style>
       div { height: 100px; border: 0; }
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-1-rtl-reverse.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-1-rtl-reverse.xhtml
index 7560167d0420..38c792ca1f7d 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-1-rtl-reverse.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-1-rtl-reverse.xhtml
@@ -8,9 +8,9 @@
      main axis. --> 
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing borders on flex items in a row-reverse horizontal flex container, with 'direction: rtl'</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-mbp-horiz-1-ref.xhtml"/>
     <style>
       div { height: 100px; border: 0; }
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-1-rtl.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-1-rtl.xhtml
index a61e919ca6e6..c9824a5e6f45 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-1-rtl.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-1-rtl.xhtml
@@ -7,9 +7,9 @@
      the flex container's main axis. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing borders on flex items in a horizontal flex container with 'direction: rtl'</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-mbp-horiz-1-reverse-ref.xhtml"/>
     <style>
       div { height: 100px; border: 0; }
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-1.xhtml
index 72b0a076a41a..a18c25b46206 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-1.xhtml
@@ -6,9 +6,9 @@
 <!-- Testcase with borders on flex items. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing borders on flex items in a horizontal flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-mbp-horiz-1-ref.xhtml"/>
     <style>
       div { height: 100px; border: 0; }
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-2a.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-2a.xhtml
index ba5d0599807c..cee29c72deed 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-2a.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-2a.xhtml
@@ -6,9 +6,9 @@
 <!-- Testcase with margin/border on flex items. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing margins and borders on flex items in a horizontal flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-mbp-horiz-2-ref.xhtml"/>
     <style>
       div { height: 100px; border: 0; }
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-2b.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-2b.xhtml
index 2873cdaf27e3..d6c14c57cefb 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-2b.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-2b.xhtml
@@ -9,9 +9,9 @@
      padding-box area in this test.) -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing margins, borders, and padding on flex items in a horizontal flex container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-mbp-horiz-2-ref.xhtml"/>
     <style>
       div { height: 100px; border: 0; }
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-3-reverse.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-3-reverse.xhtml
index 84e54ded8eb2..6af169638b35 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-3-reverse.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-3-reverse.xhtml
@@ -3,11 +3,12 @@
      Any copyright is dedicated to the Public Domain.
      http://creativecommons.org/publicdomain/zero/1.0/
 -->
+<!-- Testcase with border/padding on a row-reverse flex container and on its children -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing borders and padding on a row-reverse horizontal flex container and its flex items</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-mbp-horiz-3-reverse-ref.xhtml"/>
     <style>
       div { height: 20px; border: 0; }
@@ -18,7 +19,7 @@
         margin-bottom: 2px;
       }
 
-      <!-- customizations for flexbox border/padding -->
+      <!-- customizations for flex container border/padding -->
       .borderA {
         border-style: dashed;
         border-color: purple;
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-3.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-3.xhtml
index dd6ceca0d7cc..b5e7ece0c9fb 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-3.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-3.xhtml
@@ -6,9 +6,9 @@
 <!-- Testcase with border/padding on a flex container and on its children -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing borders and padding on a horizontal flex container and its flex items</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-mbp-horiz-3-ref.xhtml"/>
     <style>
       div { height: 20px; border: 0; }
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-4.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-4.xhtml
index 508f75a02407..63e206496a6a 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-4.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-mbp-horiz-4.xhtml
@@ -10,9 +10,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing percent-valued padding and margin on flex items</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#layout-algorithm"/>
     <link rel="match" href="flexbox-mbp-horiz-4-ref.xhtml"/>
     <style>
       div { border: 0; }
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-horiz-1.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-horiz-1.html
index c14eaccb8770..0eeb07afcf08 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-horiz-1.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-horiz-1.html
@@ -7,9 +7,9 @@
      a horizontal flex container. -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing 'overflow' property on a horizontal flex container, with contents not overflowing</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-containers">
   <link rel="match" href="flexbox-overflow-horiz-1-ref.html">
   <style>
     .flexContainer {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-horiz-2.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-horiz-2.html
index 95c8d6f14006..91a24ecffafb 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-horiz-2.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-horiz-2.html
@@ -9,9 +9,9 @@
      to be sure that "overflow: hidden" is actually applying. -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing 'overflow' property on a horizontal flex container, with 'align-items: center'</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-containers">
   <link rel="match" href="flexbox-overflow-horiz-2-ref.html">
   <style>
     .flexContainer {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-horiz-3.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-horiz-3.html
index 9771c6b85217..eeb2be9f2102 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-horiz-3.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-horiz-3.html
@@ -9,9 +9,9 @@
      "overflow: hidden" is actually applying. -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing 'overflow' property on a horizontal flex container, with 'justify-content: space-around'</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-containers">
   <link rel="match" href="flexbox-overflow-horiz-3-ref.html">
   <style>
     .flexContainer {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-vert-1.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-vert-1.html
index b7c3e58041f2..966285a84561 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-vert-1.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-vert-1.html
@@ -7,9 +7,9 @@
      a vertical flex container with overflowing contents. -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing 'overflow' property on a vertical flex container</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-containers">
   <link rel="match" href="flexbox-overflow-vert-1-ref.html">
   <style>
     .flexContainer {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-vert-2.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-vert-2.html
index 5480ac5be2bc..440a7f80a77f 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-vert-2.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-vert-2.html
@@ -9,9 +9,9 @@
      to be sure that "overflow: hidden" is actually applying. -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing 'overflow' property on a vertical flex container, with 'align-items: center'</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-containers">
   <link rel="match" href="flexbox-overflow-vert-2-ref.html">
   <style>
     .flexContainer {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-vert-3.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-vert-3.html
index 085f1bfa63a8..daa452a5f61f 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-vert-3.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-overflow-vert-3.html
@@ -9,9 +9,9 @@
      "overflow: hidden" is actually applying. -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing 'overflow' property on a vertical flex container, with 'justify-content: space-around'</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-containers">
   <link rel="match" href="flexbox-overflow-vert-3-ref.html">
   <style>
     .flexContainer {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-paint-ordering-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-paint-ordering-1.xhtml
index b934e2ed7f89..0b3c380b9365 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-paint-ordering-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-paint-ordering-1.xhtml
@@ -7,9 +7,9 @@
      their paint-order. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing the paint-order of overlapping flex items, with varying tweaks on the container</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#painting"/>
     <link rel="match" href="flexbox-paint-ordering-1-ref.xhtml"/>
     <style>
       body {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-paint-ordering-2.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-paint-ordering-2.xhtml
index 5b9985c382d8..2a29db6cddba 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-paint-ordering-2.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-paint-ordering-2.xhtml
@@ -8,9 +8,9 @@
      paint-order. -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing the paint-order of overlapping flex items with 'order' and 'z-index' set</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#painting"/>
     <link rel="match" href="flexbox-paint-ordering-2-ref.xhtml"/>
     <style>
       body {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-horiz-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-horiz-1.xhtml
index d055dfb40243..7afb45777d24 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-horiz-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-horiz-1.xhtml
@@ -9,7 +9,7 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing sizing of an auto-sized horizontal flex container with min-width and max-width constraints</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
     <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
     <link rel="match" href="flexbox-sizing-horiz-1-ref.xhtml"/>
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-horiz-2.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-horiz-2.xhtml
index b01a8733a04e..0e6900060ea3 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-horiz-2.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-horiz-2.xhtml
@@ -9,7 +9,7 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing sizing of an auto-sized horizontal flex container with min-height and max-height constraints</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
     <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
     <link rel="match" href="flexbox-sizing-horiz-2-ref.xhtml"/>
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-vert-1.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-vert-1.xhtml
index b9124f34cc3e..374e69f77bd7 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-vert-1.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-vert-1.xhtml
@@ -9,7 +9,7 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing sizing of an auto-sized vertical flex container with min-height and max-height constraints</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
     <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
     <link rel="match" href="flexbox-sizing-vert-1-ref.xhtml"/>
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-vert-2.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-vert-2.xhtml
index ee3c990faeb0..f0ab39a5d6a6 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-vert-2.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-vert-2.xhtml
@@ -9,7 +9,7 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing sizing of an auto-sized vertical flex container with min-width and max-width constraints</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
     <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
     <link rel="match" href="flexbox-sizing-vert-2-ref.xhtml"/>
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-table-fixup-1a.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-table-fixup-1a.xhtml
index d335d1feca27..f85254484a79 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-table-fixup-1a.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-table-fixup-1a.xhtml
@@ -11,9 +11,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing that table cells in a flex container get an anonymous table wrapper that forms the flex item</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-items"/>
     <link rel="match" href="flexbox-table-fixup-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-table-fixup-1b.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-table-fixup-1b.xhtml
index a057ac70d6e3..ca700246f6db 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-table-fixup-1b.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-table-fixup-1b.xhtml
@@ -17,9 +17,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Testing that the 'flex' shorthand has no effect on table cells in a flex container, since they aren't flex items</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-items"/>
     <link rel="match" href="flexbox-table-fixup-1-ref.xhtml"/>
     <style>
       div.flexbox {
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-whitespace-handling-1a.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-whitespace-handling-1a.xhtml
index 4b4140ab2cb2..7b508f7efa52 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-whitespace-handling-1a.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-whitespace-handling-1a.xhtml
@@ -16,9 +16,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Test that anonymous flex items aren't created for pure-whitespace inline content</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-items"/>
     <link rel="match" href="flexbox-whitespace-handling-1-ref.xhtml"/>
     <style>
       div { height: 100px; }
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-whitespace-handling-1b.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-whitespace-handling-1b.xhtml
index f6d5b177ecf7..636e796002c4 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-whitespace-handling-1b.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-whitespace-handling-1b.xhtml
@@ -8,11 +8,13 @@
      flex items (since that whitespace should be ignored anyway, if we're
      doing things right).
 -->
+<!-- XXXdholbert Does this testcase add value?
+    (Maybe it should be an alternate reference case.) -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Test that flex items are created correctly</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-items"/>
     <link rel="match" href="flexbox-whitespace-handling-1-ref.xhtml"/>
     <style>
       div { height: 100px; }
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-whitespace-handling-2.xhtml b/layout/reftests/w3c-css/submitted/flexbox/flexbox-whitespace-handling-2.xhtml
index 6e1fcc2bfb26..453fbcfe8270 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-whitespace-handling-2.xhtml
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-whitespace-handling-2.xhtml
@@ -10,9 +10,9 @@
 -->
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
-    <title>CSS Test: {TODO: INSERT TITLE}</title>
+    <title>CSS Test: Test that whitespace is preserved at the edges of anonymous flex items if 'white-space: pre' is set</title>
     <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
-    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/"/>
+    <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-items"/>
     <link rel="match" href="flexbox-whitespace-handling-2-ref.xhtml"/>
     <link rel="stylesheet" type="text/css" href="support/ahem.css" />
     <style>
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-with-pseudo-elements-1.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-with-pseudo-elements-1.html
index 885273c338f1..f671e54bbe45 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-with-pseudo-elements-1.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-with-pseudo-elements-1.html
@@ -9,9 +9,9 @@
 -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing that generated content nodes are treated as a flex items</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-items">
   <link rel="match" href="flexbox-with-pseudo-elements-1-ref.html">
   <meta charset="utf-8">
   <style>
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-with-pseudo-elements-2.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-with-pseudo-elements-2.html
index ef08b62fe121..3a8c86131624 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-with-pseudo-elements-2.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-with-pseudo-elements-2.html
@@ -8,9 +8,9 @@
 -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing that generated content nodes are treated as a flex items, and honor 'order'</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-items">
   <link rel="match" href="flexbox-with-pseudo-elements-2-ref.html">
   <meta charset="utf-8">
   <style>
diff --git a/layout/reftests/w3c-css/submitted/flexbox/flexbox-with-pseudo-elements-3.html b/layout/reftests/w3c-css/submitted/flexbox/flexbox-with-pseudo-elements-3.html
index 95f5de905d6b..429cc51fd359 100644
--- a/layout/reftests/w3c-css/submitted/flexbox/flexbox-with-pseudo-elements-3.html
+++ b/layout/reftests/w3c-css/submitted/flexbox/flexbox-with-pseudo-elements-3.html
@@ -13,9 +13,9 @@
      row/cell. -->
 <html>
 <head>
-  <title>CSS Test: {TODO: INSERT TITLE}</title>
+  <title>CSS Test: Testing that generated content nodes with table-part display types are wrapped with an anonymous table, which forms a flex item</title>
   <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
-  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/">
+  <link rel="help" href="http://dev.w3.org/csswg/css-flexbox/#flex-items">
   <link rel="match" href="flexbox-with-pseudo-elements-3-ref.html">
   <meta charset="utf-8">
   <style>
