diff --git a/tests/wpt/meta-legacy-layout/css/css-backgrounds/inheritance.sub.html.ini b/tests/wpt/meta-legacy-layout/css/css-backgrounds/inheritance.sub.html.ini
index 06216373de1f..fb8dada39fb6 100644
--- a/tests/wpt/meta-legacy-layout/css/css-backgrounds/inheritance.sub.html.ini
+++ b/tests/wpt/meta-legacy-layout/css/css-backgrounds/inheritance.sub.html.ini
@@ -1,21 +1,6 @@
 [inheritance.sub.html]
-  [Inheritance of CSS Backgrounds and Borders properties]
-    expected: FAIL
-
   [Property background-position has initial value 0% 0%]
     expected: FAIL
 
   [Property background-position does not inherit]
     expected: FAIL
-
-  [Property border-bottom-width has initial value undefined]
-    expected: FAIL
-
-  [Property border-left-width has initial value undefined]
-    expected: FAIL
-
-  [Property border-right-width has initial value undefined]
-    expected: FAIL
-
-  [Property border-top-width has initial value undefined]
-    expected: FAIL
diff --git a/tests/wpt/meta/MANIFEST.json b/tests/wpt/meta/MANIFEST.json
index b75c27713e13..0690fe385b7d 100644
--- a/tests/wpt/meta/MANIFEST.json
+++ b/tests/wpt/meta/MANIFEST.json
@@ -522299,7 +522299,7 @@
       ]
      ],
      "inheritance.sub.html": [
-      "01bb8422991ee48da525087d5462c380c5eb8b84",
+      "8af2dada5217ccf1b59620ab400afba052ff460f",
       [
        null,
        {}
diff --git a/tests/wpt/meta/css/css-backgrounds/inheritance.sub.html.ini b/tests/wpt/meta/css/css-backgrounds/inheritance.sub.html.ini
deleted file mode 100644
index 97675fbef425..000000000000
--- a/tests/wpt/meta/css/css-backgrounds/inheritance.sub.html.ini
+++ /dev/null
@@ -1,12 +0,0 @@
-[inheritance.sub.html]
-  [Property border-bottom-width has initial value undefined]
-    expected: FAIL
-
-  [Property border-left-width has initial value undefined]
-    expected: FAIL
-
-  [Property border-right-width has initial value undefined]
-    expected: FAIL
-
-  [Property border-top-width has initial value undefined]
-    expected: FAIL
diff --git a/tests/wpt/tests/css/css-backgrounds/inheritance.sub.html b/tests/wpt/tests/css/css-backgrounds/inheritance.sub.html
index 01bb8422991e..8af2dada5217 100644
--- a/tests/wpt/tests/css/css-backgrounds/inheritance.sub.html
+++ b/tests/wpt/tests/css/css-backgrounds/inheritance.sub.html
@@ -31,7 +31,7 @@
 </style>
 <script>
 const transparentColor = 'rgba(0, 0, 0, 0)'; // https://www.w3.org/TR/css-color-3/#transparent
-const mediumWidth = getComputedStyle(document.getElementById('reference')).columnRuleWidth; // e.g. 3px
+const mediumWidth = '3px'; // https://www.w3.org/TR/css-backgrounds-3/#valdef-line-width-medium
 const currentColor = 'rgb(2, 3, 4)';
 container.style.color = currentColor;