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1c1c507c03
This adds the infrastructure necessary to support stacking contexts that are not containing blocks for absolutely-positioned elements. Our infrastructure did not support that before. This minor revamp actually ended up simplifying the logic around display list building and stacking-relative position computation for absolutely-positioned flows, which was nice.
48 lines
629 B
HTML
48 lines
629 B
HTML
<!DOCTYPE html>
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<html>
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<head>
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<!-- Tests that `opacity` causes a new stacking context to be formed. -->
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<style>
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section {
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position: absolute;
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width: 100px;
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height: 100px;
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}
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#a {
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background: red;
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top: 0;
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left: 0;
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z-index: 2;
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}
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#b {
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background: #00ff00;
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top: 25px;
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left: 25px;
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z-index: 1;
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opacity: 0.5;
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}
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#c {
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background: blue;
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top: 50px;
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left: 50px;
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z-index: 3;
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}
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#container {
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width: 200px;
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height: 200px;
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}
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</style>
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</head>
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<body>
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<section id=a></section>
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<section id=c></section>
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<div id=container>
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<section id=b></section>
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</div>
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</body>
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</html>
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