will-change-stacking-context-offset-path-1.html (909B)
1 <!DOCTYPE html> 2 <meta charset="utf-8"> 3 <title>CSS will-change: 'will-change: offset-path' creates a stacking context</title> 4 <link rel="author" title="Mozilla" href="http://www.mozilla.org/"> 5 <link rel="help" href="https://drafts.csswg.org/css-will-change-1/#will-change"> 6 <link rel="help" href="https://drafts.fxtf.org/motion-1/#offset-path-property"> 7 <link rel="match" href="green-square-100-by-100-ref.html"> 8 <meta name="assert" content="If any non-initial value of a property would create a stacking context on the element, specifying that property in will-change must create a stacking context on the element."> 9 <style> 10 html, body { margin: 0; padding: 0; } 11 div { width: 100px; height: 100px } 12 #wc { will-change: offset-path; background: red } 13 #child { position: absolute; top: 0; left: 0; z-index: -1; background: green } 14 </style> 15 <body> 16 <div id="wc"> 17 <div id="child"> 18 </div> 19 </div> 20 </body>