46 lines
1.1 KiB
HTML
46 lines
1.1 KiB
HTML
<!DOCTYPE html>
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<title>position: sticky should create a stacking context</title>
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<link rel="match" href="position-sticky-stacking-context-ref.html" />
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<link rel="help" href="https://www.w3.org/TR/css-position-3/#sticky-pos" />
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<meta name="assert" content="position:sticky elements should create a stacking context" />
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<script src="../resources/ref-rectangle.js"></script>
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<style>
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.indicator {
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position: absolute;
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background-color: green;
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z-index: 1;
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}
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.sticky {
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position: sticky;
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z-index: 0;
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}
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.child {
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position: relative;
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background-color: red;
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z-index: 2;
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}
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.box {
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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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<script>
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window.addEventListener('load', function() {
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createIndicatorForStickyElements(document.querySelectorAll('.sticky'));
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})
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</script>
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<div>You should see a single green box below. No red or blue should be visible.</div>
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<div class="indicator box"></div>
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<div class="sticky box">
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<!-- Because sticky forms a stacking context, this child remains on bottom
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even though it has a higher z-index than the indicator box. -->
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<div class="child box"></div>
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</div>
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