61 lines
1.6 KiB
HTML
61 lines
1.6 KiB
HTML
<!DOCTYPE html>
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<title>Tests that overflowing the inset-modified containing block triggers position fallback</title>
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<link rel="help" href="https://drafts.csswg.org/css-anchor-1/#fallback">
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<link rel="author" href="mailto:xiaochengh@chromium.org">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/resources/check-layout-th.js"></script>
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<script src="support/test-common.js"></script>
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<style>
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.cb {
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width: 400px;
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height: 400px;
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transform: scale(1);
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background: yellow;
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}
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.anchor1 {
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anchor-name: --a;
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margin-left: 100px;
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width: 100px;
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height: 100px;
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background: blue;
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}
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.target {
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position: absolute;
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position-try-fallbacks: --f1, --f2;
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width: min-content;
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height: 100px;
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background: orange;
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/* 1: Position to the left of the anchor. */
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left: 0;
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right: anchor(--a left);
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top: anchor(--a top);
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}
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.inline-spacer {
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display: inline-block;
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width: 200px;
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height: 100px;
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}
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@position-try --f1 {
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/* 2: Position to the right of the anchor. */
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left: anchor(--a right);
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right: 0;
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top: anchor(--a top);
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}
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@position-try --f2 {
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/* 3: Placeholder fallback that shouldn't be selected when the previous
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ones do not overflow the available space. */
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inset: 0;
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}
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</style>
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<body onload="checkLayoutForAnchorPos('.target')">
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<!-- The first base style overflows the inset-modifed containing block -->
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<div class="cb">
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<div class="anchor1"></div>
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<div class="target"
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data-offset-x=200 data-offset-y=0
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data-expected-width=200 data-expected-height=100>
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<span class="inline-spacer"></span>
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</div>
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</div>
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</body>
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