diff --git a/testing/web-platform/tests/css/css-display/display-contents-shadow-host-whitespace.html b/testing/web-platform/tests/css/css-display/display-contents-shadow-host-whitespace.html
new file mode 100644
index 000000000000..84b04dba1013
--- /dev/null
+++ b/testing/web-platform/tests/css/css-display/display-contents-shadow-host-whitespace.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Whitespace across display:contents shadow host</title>
+<link rel="help" href="https://drafts.csswg.org/css-display-3/#valdef-display-contents">
+<link rel="help" href="https://drafts.csswg.org/css-text-3/#white-space-rules">
+<link rel="match" href="../reference/pass_if_two_words.html">
+<p>There should be a space between "two" and "words" below.</p>
+<div id="host" style="display:contents"></div> <span>words</span>
+<script>
+  host.attachShadow({mode:"open"}).innerHTML = "two";
+</script>
diff --git a/testing/web-platform/tests/css/css-flexbox/anonymous-flex-item-001.html b/testing/web-platform/tests/css/css-flexbox/anonymous-flex-item-001.html
index e1c6ec6d8aec..3e749d43f769 100644
--- a/testing/web-platform/tests/css/css-flexbox/anonymous-flex-item-001.html
+++ b/testing/web-platform/tests/css/css-flexbox/anonymous-flex-item-001.html
@@ -3,7 +3,7 @@
 <title>CSS Flexbox Test: Flex item - contiguous text runs - node removal</title>
 <link rel="author" title="Rune Lillesveen" href="mailto:futhark@chromium.org">
 <link rel="help" href="https://drafts.csswg.org/css-flexbox/#flex-items">
-<link rel="match" href="anonymous-flex-item-ref.html">
+<link rel="match" href="../reference/pass_if_two_words.html">
 <p>There should be a space between "two" and "words" below.</p>
 <div style="display:flex">two <span id="spanRemove"></span>words</div>
 <script>
diff --git a/testing/web-platform/tests/css/css-flexbox/anonymous-flex-item-002.html b/testing/web-platform/tests/css/css-flexbox/anonymous-flex-item-002.html
index 4b571fe5fc39..8fdeb27110e1 100644
--- a/testing/web-platform/tests/css/css-flexbox/anonymous-flex-item-002.html
+++ b/testing/web-platform/tests/css/css-flexbox/anonymous-flex-item-002.html
@@ -3,6 +3,6 @@
 <title>CSS Flexbox Test: Flex item - contiguous text runs - display:none</title>
 <link rel="author" title="Rune Lillesveen" href="mailto:futhark@chromium.org">
 <link rel="help" href="https://drafts.csswg.org/css-flexbox/#flex-items">
-<link rel="match" href="anonymous-flex-item-ref.html">
+<link rel="match" href="../reference/pass_if_two_words.html">
 <p>There should be a space between "two" and "words" below.</p>
 <div style="display:flex">two <span style="display:none"></span>words</div>
diff --git a/testing/web-platform/tests/css/css-flexbox/anonymous-flex-item-003.html b/testing/web-platform/tests/css/css-flexbox/anonymous-flex-item-003.html
index 1449e1df60e4..cc896e9410cd 100644
--- a/testing/web-platform/tests/css/css-flexbox/anonymous-flex-item-003.html
+++ b/testing/web-platform/tests/css/css-flexbox/anonymous-flex-item-003.html
@@ -3,7 +3,7 @@
 <title>CSS Flexbox Test: Flex item - contiguous text runs - display:none dynamic</title>
 <link rel="author" title="Rune Lillesveen" href="mailto:futhark@chromium.org">
 <link rel="help" href="https://drafts.csswg.org/css-flexbox/#flex-items">
-<link rel="match" href="anonymous-flex-item-ref.html">
+<link rel="match" href="../reference/pass_if_two_words.html">
 <p>There should be a space between "two" and "words" below.</p>
 <div style="display:flex">two <span id="noneSpan"></span>words</div>
 <script>
diff --git a/testing/web-platform/tests/css/css-text/white-space/reference/white-space-empty-text-sibling-ref.html b/testing/web-platform/tests/css/css-text/white-space/reference/white-space-empty-text-sibling-ref.html
deleted file mode 100644
index 3837f7f62f46..000000000000
--- a/testing/web-platform/tests/css/css-text/white-space/reference/white-space-empty-text-sibling-ref.html
+++ /dev/null
@@ -1,3 +0,0 @@
-<!DOCTYPE html>
-<p>There should be a space between "Two" and "words".</p>
-Two words
diff --git a/testing/web-platform/tests/css/css-text/white-space/white-space-empty-text-sibling.html b/testing/web-platform/tests/css/css-text/white-space/white-space-empty-text-sibling.html
index 56a5cad875db..50439df433ce 100644
--- a/testing/web-platform/tests/css/css-text/white-space/white-space-empty-text-sibling.html
+++ b/testing/web-platform/tests/css/css-text/white-space/white-space-empty-text-sibling.html
@@ -1,11 +1,11 @@
 <!DOCTYPE html>
 <link rel="help" href="https://drafts.csswg.org/css-text-3/#white-space-rules">
-<link rel="match" href="reference/white-space-empty-text-sibling-ref.html">
-<p>There should be a space between "Two" and "words".</p>
+<link rel="match" href="../../reference/pass_if_two_words.html">
+<p>There should be a space between "two" and "words" below.</p>
 <div id="block"> <span>words</span></div>
 <script>
   block.insertBefore(document.createTextNode(""), block.firstChild);
   block.insertBefore(document.createTextNode(""), block.firstChild);
   block.offsetTop;
-  block.firstChild.data = "Two";
+  block.firstChild.data = "two";
 </script>
diff --git a/testing/web-platform/tests/css/css-flexbox/anonymous-flex-item-ref.html b/testing/web-platform/tests/css/reference/pass_if_two_words.html
similarity index 65%
rename from testing/web-platform/tests/css/css-flexbox/anonymous-flex-item-ref.html
rename to testing/web-platform/tests/css/reference/pass_if_two_words.html
index 4a2285400c9f..e33eea5e6ea2 100644
--- a/testing/web-platform/tests/css/css-flexbox/anonymous-flex-item-ref.html
+++ b/testing/web-platform/tests/css/reference/pass_if_two_words.html
@@ -1,6 +1,5 @@
 <!DOCTYPE html>
 <meta charset="utf-8">
 <title>CSS Reftest Reference</title>
-<link rel="author" title="Rune Lillesveen" href="mailto:futhark@chromium.org">
 <p>There should be a space between "two" and "words" below.</p>
 two words
