16abbd78e7
Add scripts/import_wpt_reftests.py to sparse-clone the upstream WPT repo and bulk-import qualifying CSS reftests (no JS, no external resources) as known_fail entries. 23 tests already pass and are promoted. The import script is idempotent and exposed via `just import-wpt`. CI now prints the WPT summary (pass=36 known_fail=2877 skip=1) on every run. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
66 lines
2.1 KiB
HTML
66 lines
2.1 KiB
HTML
<!DOCTYPE html>
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<title>CSS test: balancing and line-clamp</title>
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<meta charset="utf-8">
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<link rel='author' title='Andreu Botella' href='mailto:abotella@igalia.com'>
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<link rel='help' href='https://drafts.csswg.org/css-overflow-4/#line-clamp'>
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<link rel='help' href='https://drafts.csswg.org/css-text-4/#text-wrap-style'>
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<meta name="assert" content="If the element is affected by line-clamp, the clamping effect is applied first, then the remaining lines are balanced. If the clamp point is at the end of the line-clamp container, no ellipsis is shown, and so the width it would otherwise have does not affect the balancing.">
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<link rel='match' href="reference/text-wrap-balance-line-clamp-006-ref.html">
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<style>
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div {
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border: solid;
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font-family: monospace;
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font-size: 4rem;
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line-height: 1rem;
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margin: 1ch;
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width: calc(15.1ch / 4); /* fits 15.1 characters at the span's font-size */
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}
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div span {
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font-size: 1rem;
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}
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.test {
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border-color: blue;
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text-wrap-style: balance;
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line-clamp: 2;
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/* This code is unnecessary in any browser that supports the unprefixed version of line-clamp,
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but neither does it have any detrimental effect,
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and it broadens the test to browsers that only support the prefixed version */
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-webkit-line-clamp: 2;
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display: -webkit-box;
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-webkit-box-orient: vertical;
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overflow: hidden;
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}
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.ref {
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border-color: orange;
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}
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</style>
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<p>Test passes if the box with a blue frame is identical to the orange one.
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<div class="test">
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<span>1 2 3 4 5 6 7 8 9 0 1 2</span>
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</div>
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<div class="ref">
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<span>1 2 3 4 5 6 <br> 7 8 9 0 1 2</span>
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</div>
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<!--
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Since the clamp point is at the end of the line-clamp container, the ellipsis
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must not be shown, and it must not affect the balancing. Therefore the optimal
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balancing must be:
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|---------------|
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|1 2 3 4 5 6 |
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|7 8 9 0 1 2 |
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|---------------|
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Whereas if the ellipsis was taken into account, since its width is 4 times the
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width of characters inside the <span>, it would result in this balancing:
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|---------------|
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|1 2 3 4 5 6 7 |
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|8 9 0 1 2.... |
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|---------------|
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-->
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