| <!doctype html> |
| <html class="reftest-wait"> |
| <title>CSS Test: Checks that dynamic changes to whether we're a fixed-pos containing block are handled correctly</title> |
| <meta charset="utf-8"> |
| <link rel="help" href="https://drafts.csswg.org/css-transforms-1/#containing-block-for-all-descendants"> |
| <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1498873"> |
| <link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io"> |
| <link rel="author" title="Mozilla" href="https://mozilla.org"> |
| <link rel="match" href="dynamic-fixed-pos-cb-change-ref.html"> |
| <style> |
| html, |
| body { |
| height: 100%; |
| overflow: hidden; |
| margin: 0; |
| padding: 0; |
| background-color: #222; |
| } |
| |
| body { |
| display: flex; |
| } |
| |
| #fixed { |
| position: fixed; |
| width: 100%; |
| height: 100%; |
| top: 0; |
| left: 0; |
| z-index: 1; |
| background: black; |
| } |
| |
| #popup { |
| position: absolute; |
| width: 200px; |
| height: 200px; |
| left: 0; |
| top: 0; |
| z-index: 2; |
| background: red; |
| transform: scale( 1.1111 ); |
| } |
| |
| body, #popup { |
| transform-origin: 50% 50%; |
| } |
| </style> |
| <div id="popup"> |
| <!-- Seeing this box change color should not move me or change my size. --> |
| </div> |
| <div id="fixed"></div> |
| <script> |
| onload = function() { |
| requestAnimationFrame(() => { |
| document.body.style.transform = "scale(0.9)"; |
| requestAnimationFrame(() => { |
| popup.style.backgroundColor = "green"; |
| requestAnimationFrame(() => { |
| document.documentElement.className = ""; |
| }); |
| }); |
| }); |
| } |
| </script> |