24 lines
1.1 KiB
HTML
24 lines
1.1 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>CSS Containment Test: Layout containment on button</title>
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<link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com">
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<link rel="help" href="https://drafts.csswg.org/css-contain-1/#containment-layout">
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<link rel="help" href="https://drafts.csswg.org/css2/visudet.html#propdef-vertical-align">
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<link rel="match" href="reference/contain-layout-button-001-ref.html">
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<meta name=assert content="Layout containment does apply to buttons, but in an inline context their baseline is synthesized from their content-box.">
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<style>
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button {
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border: 5px solid green;
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padding: 0;
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/* We use a nonzero margin-bottom to be sure we're synthesizing a baseline
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from the margin-box rather than from the border-box: */
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margin-bottom: 2px;
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contain: layout;
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color: transparent;
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width: 0;
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height: 0;
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}
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</style>
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<p>This test passes if it has the same output as the reference. You see the word "before", a 10px green square aligned 2px above the text's baseline, and then the word "after".</p>
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before<button>b</button>after
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