diff --git a/layout/reftests/w3c-css/submitted/contain/contain-size-flex-001.html b/layout/reftests/w3c-css/submitted/contain/contain-size-flex-001.html
index 1866dfd230b7..72ab97043b7b 100644
--- a/layout/reftests/w3c-css/submitted/contain/contain-size-flex-001.html
+++ b/layout/reftests/w3c-css/submitted/contain/contain-size-flex-001.html
@@ -2,7 +2,7 @@
 <html>
 <head>
   <meta charset="utf-8">
-  <title>CSS Test: 'contain: size' on flex elements should cause them to be sized and baseline-aligned as if they had no contents.</title>
+  <title>CSS Test: 'contain: size' on flex elements should cause them to be sized as if they had no contents.</title>
   <link rel="author" title="Morgan Rae Reschenberg" href="mailto:mreschenberg@berkeley.edu">
   <link rel="help" href="https://drafts.csswg.org/css-contain/#containment-size">
   <link rel="match" href="contain-size-flex-001-ref.html">
diff --git a/layout/reftests/w3c-css/submitted/contain/contain-size-grid-001.html b/layout/reftests/w3c-css/submitted/contain/contain-size-grid-001.html
index a85b0a3138de..c81fa1fa1db1 100644
--- a/layout/reftests/w3c-css/submitted/contain/contain-size-grid-001.html
+++ b/layout/reftests/w3c-css/submitted/contain/contain-size-grid-001.html
@@ -2,7 +2,7 @@
 <html>
 <head>
   <meta charset="utf-8">
-  <title>CSS Test: 'contain: size' on grid elements should cause them to be sized and baseline-aligned as if they had no contents.</title>
+  <title>CSS Test: 'contain: size' on grid elements should cause them to be sized as if they had no contents.</title>
   <link rel="author" title="Gerald Squelart" href="mailto:gsquelart@mozilla.com">
   <link rel="help" href="https://drafts.csswg.org/css-contain/#containment-size">
   <link rel="match" href="contain-size-grid-001-ref.html">
