| <!doctype html> |
| <meta charset="utf-8"> |
| <title>CSS Test: will-change: position turns an element in an abspos containing block when changed dynamically.</title> |
| <link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io"> |
| <link rel="author" title="Mozilla" href="https://mozilla.org"> |
| <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1499863"> |
| <link rel="help" href="https://drafts.csswg.org/css-will-change/#will-change"> |
| <link rel="match" href="will-change-abspos-cb-001-ref.html"> |
| <style> |
| .container { |
| border: 1px solid green; |
| width: 100px; |
| height: 100px; |
| margin-top: 100px; |
| } |
| .abspos { |
| position: absolute; |
| top: 0; |
| left: 0; |
| background: orange; |
| height: 20px; |
| width: 20px; |
| } |
| </style> |
| <div class="container"> |
| <div class="abspos"></div> |
| </div> |
| <script> |
| onload = function() { |
| let container = document.querySelector(".container"); |
| container.offsetTop; |
| container.style.willChange = "position"; |
| } |
| </script> |
