contain-paint-dynamic-003.html (1310B)
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-003-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 contain: paint; 19 } 20 #overflowing { 21 width: 400px; 22 height: 100px; 23 } 24 .square { 25 display: inline-block; 26 width: 50px; 27 height: 50px; 28 margin: 5px; 29 } 30 .green { 31 background: green; 32 } 33 </style> 34 35 <body> 36 <p>PASS if you see <em>two</em> green squares.</p> 37 <div id="container"> 38 <div id="overflowing"><div class="square"></div><div class="square"></div><div class="red square"></div></div> 39 </div> 40 <script> 41 window.addEventListener("TestRendered", async () => { 42 container.style.contain = "none"; 43 await waitForAtLeastOneFrame(); 44 takeScreenshot(); 45 }); 46 </script> 47 </body> 48 </html>