testing/web-platform/tests/css/css-text/tab-size/tab-size-inline-002.html


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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Text level 3 Test: inline box tab-size tab stops</title>
<link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net/">
<link rel="help" href="https://drafts.csswg.org/css-text-3/#tab-size-property">
<link rel="help" href="https://drafts.csswg.org/css-text-3/#white-space-phase-2">
<link rel="match" href="tab-size-inline-002-ref.html">
<meta name="assert" content="tab-stops are calculated separatey for each tab with a different tab-size, not stacked up somehow">
<style>
div {
    font-family: monospace;
    white-space: pre;
    tab-size: 10;
    font-size: 2em;
}
span {
    tab-size: 4;
}
.wrong { color: orange; }
.right { color: blue; }
</style>

<p>Test passes if the black “A” lines up vertically with the blue one, not the orange one.

<div>&#x09;<span>&#x09;A</span></div>

<div class=right>            A</div> <!-- 12 = n * 4, such with n such that n*4 > 10 -->
<div class=wrong>              A</div> <!-- 14 = 10 + 4 -->