1 files changed, 8 insertions, 5 deletions
diff --git a/testing/web-platform/tests/css/css-color/lch-l-over-100-1.html b/testing/web-platform/tests/css/css-color/lch-l-over-100-1.html
index 6e0c62330c..12d594d1a3 100644
--- a/testing/web-platform/tests/css/css-color/lch-l-over-100-1.html
+++ b/testing/web-platform/tests/css/css-color/lch-l-over-100-1.html
@@ -5,13 +5,16 @@
 <link rel="match" href="lch-l-over-100-ref.html">
 <meta name="assert" content="lch() with lightness greater than 100">
 <style>
-    .ref { background-color: lch(100 150 20); width: 100px; height: 100px}
+    .square { border: 1px solid black; width: 200px; height: 200px}
+    .ref { background-color: lch(100 150 20); height: 100px}
     /* l = 150 should clamp back to 100 */
-    .test { background-color: lch(150 150 20); width: 100px; height: 100px}
+    .test { background-color: lch(150 150 20); height: 100px}
 </style>
 
 <body>
-    <p>Test passes if you see a single color.</p>
-    <div class="ref"></div>
-    <div class="test"></div>
+    <p>Test passes if you see a square border with a single color inside.</p>
+    <div class="square">
+        <div class="ref"></div>
+        <div class="test"></div>
+    </div>
 </body>