| <link rel="help" href="https://drafts.csswg.org/css-scroll-anchoring/"> |
| |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <style> |
| body { |
| margin: 0px; |
| height: 2000px; |
| width: 2000px; |
| } |
| |
| #first { |
| height: 1000px; |
| background-color: #FFA5D2; |
| } |
| |
| #anchor { |
| position: absolute; |
| background-color: #84BE6A; |
| height: 600px; |
| width: 100%; |
| } |
| |
| #fragment { |
| position: relative; |
| background-color: orange; |
| height: 200px; |
| width: 200px; |
| margin: 10px; |
| } |
| </style> |
| |
| <div id="first"></div> |
| <div id="changer"></div> |
| <div id="anchor"> |
| <div id="fragment" name="fragment"></div> |
| </div> |
| |
| <script> |
| test(function(t) { |
| // Note that this test passes even without scroll anchoring because of |
| // fragment anchoring. |
| window.location.hash = 'fragment'; |
| // Height of first + fragment margin-top. |
| assert_equals(window.scrollY, 1010); |
| |
| // Change height of content above fragment. |
| var ch = document.getElementById('changer'); |
| ch.style.height = 100; |
| |
| // Height of first + height changer + fragment margin-top. |
| assert_equals(window.scrollY, 1110); |
| }, 'Verify scroll anchoring interaction with fragment scrolls'); |
| </script> |