| <!DOCTYPE HTML> |
| <title>'contain: layout' establishes stacking context.</title> |
| <link rel="author" title="Psychpsyo" href="mailto:psychpsyo@gmail.com"> |
| <link rel="help" href="https://drafts.csswg.org/css2/visuren.html#x43"> |
| <link rel="help" href="https://drafts.csswg.org/css-contain/#containment-layout"> |
| <link rel="match" href="contain-paint-stacking-context-001-ref.html"> |
| <style> |
| div { |
| width: 100px; |
| height: 100px; |
| } |
| #front { |
| background-color: green; |
| /* makes a stacking context and puts this on top */ |
| position: absolute; |
| z-index: 10; |
| } |
| #back { |
| contain: layout; |
| } |
| #notOnTop { |
| background-color: red; |
| /* z-index is higher than on #front, but this should still be covered up because it is inside #back, which has 'contain: layout' */ |
| position: absolute; |
| z-index: 1000; |
| } |
| </style> |
| <div id="front"></div> |
| <div id="back"> |
| <div id="notOnTop"></div> |
| </div> |
| Test succeeds if there is no red. |
