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35 lines
1.3 KiB
HTML
35 lines
1.3 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>CSS Values and Units Test: support for the ex unit</title>
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<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
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<link rel="help" href="https://drafts.csswg.org/css-values-3/#font-relative-lengths">
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<link rel="help" href="https://www.w3.org/TR/css-fonts-3/#first-available-font">
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<link rel="match" href="reference/ex-unit-004-ref.html">
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<meta name="assert" content="The ex unit equals the x-height of the first available font if it has reliable metrics for the x-height.">
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<style>
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@font-face {
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font-family: ExTestNoSpace;
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src: url(resources/ExTest-NoSpace.woff);
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unicode-range: U+0021-00FF;
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}
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div {
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height: 10px;
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background-color: blue;
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margin-top: 10px;
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font-size: 80px;
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width: 10ex;
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}
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.test {
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font-family: ExTestNoSpace, Arial, sans-serif;
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}
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.ref {
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font-family: Arial, sans-serif;
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}
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</style>
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<p>The test passes if there are two blue rectangles of equal length.</p>
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<!-- ExTest is a font whose OS/2 table's sxHeight field is set to an
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eighth of the font's units per em, but the space character is excluded
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by unicode-range and therefore it is not valid as "first available font"
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per CSS Fonts, and must NOT be used as the basis of the 'ex' unit. -->
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<div class="test"></div>
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<div class="ref"></div>
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