getComputedStyle-sticky-pos-percent.html (1010B)
1 <!DOCTYPE html> 2 <title>CSS Test: resolve top percentage value against proper box</title> 3 <link rel="help" href="https://github.com/w3c/csswg-drafts/issues/3115" /> 4 <link rel="help" href="https://drafts.csswg.org/css-position/#sticky-pos" /> 5 <link rel="help" href="https://drafts.csswg.org/cssom/#resolved-values" /> 6 <meta name="assert" content="Test that the sticky percentage insets are 7 resolved against the right ancestor, i.e. the nearest scrollport." /> 8 9 <script src="/resources/testharness.js"></script> 10 <script src="/resources/testharnessreport.js"></script> 11 12 <div style="height: 500px; background: purple; overflow: hidden;"> 13 <div style="height: 400px; background: yellow;"> 14 <div id="target" style="height: 100px; position: sticky; left: 0; top: 50%; background: blue;"> 15 </div> 16 </div> 17 </div> 18 <script> 19 test(() => { 20 assert_equals(getComputedStyle(target).top, '250px'); 21 }, "Sticky element's top property percentage value should be resolved against the div with overflow: hidden"); 22 </script>