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diff --git a/testing/web-platform/tests/css/cssom-view/window-screen-width.html b/testing/web-platform/tests/css/cssom-view/window-screen-width.html
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+++ b/testing/web-platform/tests/css/cssom-view/window-screen-width.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>CSSOM View - 4.2 - screen.width range tests</title>
+    <link rel="author" title="Neils Christoffersen" href="mailto:neils.christoffersen@gmail.com">
+    <link rel="help" href="http://www.w3.org/TR/cssom-view/#the-screen-interface">
+    <meta name="flags" content="dom">
+    <meta name="assert" content="window.screen.width has sensible values">
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+    <div id="myDiv"></div>
+    <div id="log"></div>
+    <script>
+        var upperBound = 50000;
+
+        test(
+            function() {
+                assert_not_equals(window.screen.width, 0, "window.screen.width is zero")
+            }, "zero check"
+        );
+
+        test(
+            function() {
+                assert_true(window.screen.width > 0, "window.screen.width shouldn't be negative")
+            }, "positive check"
+        );
+
+        test(
+            function() {
+                assert_true(window.screen.width < upperBound, "window.screen.width shouldn't be so large")
+            }, "upper bound check"
+        );
+    </script>
+</body>
+</html>