x-pseudo-element.html (767B)
1 <!doctype html> 2 <title>CSS Test: 'x-' prefixed pseudo-elements don't parse correctly</title> 3 <link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io"> 4 <link rel="author" title="Mozilla" href="https://www.mozilla.org"> 5 <link rel="help" href="https://drafts.csswg.org/selectors-4/#pseudo-elements"> 6 <script src="/resources/testharness.js"></script> 7 <script src="/resources/testharnessreport.js"></script> 8 <style> 9 p { 10 color: green; 11 } 12 ::x-something-nobody-would-think-of, p { 13 color: red; 14 } 15 </style> 16 <p>Should be green 17 <script> 18 test(function() { 19 let p = document.querySelector('p'); 20 assert_equals(getComputedStyle(p).color, "rgb(0, 128, 0)"); 21 }, "x-prefixed pseudo-elements should make the whole rule invalid") 22 </script>