contain-paint-dynamic-002.html (1284B)
1 <!DOCTYPE html> 2 <html class="reftest-wait"> 3 <meta charset="utf-8"> 4 <title>Dynamic change to paint containment</title> 5 <link rel="help" href="https://drafts.csswg.org/css-contain/#contain-property"> 6 <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1765615"> 7 <meta name="assert" content="Verify paint containment is properly updated after dynamic change to the contain property."> 8 <link rel="match" href="contain-paint-dynamic-002-ref.html"> 9 10 <script src="/common/reftest-wait.js"></script> 11 <script src="/common/rendering-utils.js"></script> 12 13 <style> 14 #container { 15 width: 100px; 16 height: 100px; 17 background: green; 18 } 19 #overflowing { 20 width: 400px; 21 height: 100px; 22 } 23 .square { 24 display: inline-block; 25 width: 50px; 26 height: 50px; 27 margin: 5px; 28 } 29 .red { 30 background: red; 31 } 32 </style> 33 34 <body> 35 <p>PASS if you see a green square and no red.</p> 36 <div id="container"> 37 <div id="overflowing"><div class="square"></div><div class="square"></div><div class="red square"></div></div> 38 </div> 39 <script> 40 window.addEventListener("TestRendered", async () => { 41 container.style.contain = "paint"; 42 await waitForAtLeastOneFrame(); 43 takeScreenshot(); 44 }); 45 </script> 46 </body> 47 </html>