| <!doctype HTML> |
| <html class="reftest-wait"> |
| <meta charset="utf8"> |
| <title>CSS Content Visibility: hidden stops painting when added (positioned child)</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-ref.html"> |
| <meta name="assert" content="content-visibility subtrees stop painting when hidden is added"> |
| |
| <script src="/common/reftest-wait.js"></script> |
| |
| <style> |
| #container { |
| width: 150px; |
| height: 150px; |
| background: lightblue; |
| } |
| .positioned { |
| position: absolute; |
| top: 0; |
| left: 0; |
| } |
| .hidden { |
| content-visibility: hidden; |
| } |
| #child { |
| width: 50px; |
| height: 50px; |
| background: lightgreen; |
| } |
| </style> |
| |
| <div id=container> |
| Text. |
| <div id=child class=positioned></div> |
| </div> |
| |
| <script> |
| function runTest() { |
| const container = document.getElementById("container"); |
| container.classList.add("hidden"); |
| requestAnimationFrame(takeScreenshot); |
| } |
| |
| window.onload = runTest; |
| </script> |
| </html> |
