| <!doctype HTML> |
| <html class="reftest-wait"> |
| <meta charset="utf8"> |
| <title>Content Visibility: hidden subtree becomes auto in the viewport</title> |
| <link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org"> |
| <link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility"> |
| <link rel="match" href="container-with-child-ref.html"> |
| <meta name="assert" content="hidden subtree because auto and then paints"> |
| <script src="/common/reftest-wait.js"></script> |
| |
| <style> |
| #container { |
| width: 150px; |
| height: 150px; |
| background: lightblue; |
| } |
| #child { |
| width: 50px; |
| height: 50px; |
| background: lightgreen; |
| } |
| .auto { content-visibility: auto; } |
| .hidden { content-visibility: hidden; } |
| |
| </style> |
| |
| <div id=container class=hidden> |
| Text. |
| <div id=child></div> |
| </div> |
| |
| <script> |
| |
| function runTest() { |
| document.getElementById("container").classList.remove("hidden"); |
| document.getElementById("container").classList.add("auto"); |
| |
| requestAnimationFrame(takeScreenshot); |
| } |
| |
| window.onload = requestAnimationFrame(() => { |
| requestAnimationFrame(() => { |
| requestAnimationFrame(() => { |
| runTest(); |
| }); |
| }); |
| }); |
| |
| </script> |
| </html> |
| |
| |
