File: text-wrap-balance-line-clamp-004.html

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<!DOCTYPE html>
<html lang="en" >
<meta charset="utf-8">
<title>CSS test: balancing and line-clamp</title>
<link rel='author' title='Andreu Botella' href='mailto:abotella@igalia.com'>
<link rel='help' href='https://drafts.csswg.org/css-overflow-4/#line-clamp'>
<link rel='help' href='https://drafts.csswg.org/css-text-4/#text-wrap-style'>
<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 last line is displaced by the line-clamp ellipsis, the content of the previous lines should be balanced into the displaced line if possible, but in this case it isn't.">
<link rel="match" href="reference/text-wrap-balance-line-clamp-004-ref.html">
<style>
div {
    border: solid;
    font-family: monospace;
    margin: 1ch;
    width: 9.1ch;  /* .1ch to work around browser bugs */
}
.test {
    border-color: blue;

    text-wrap-style: balance;
    line-clamp: 3;
    /* This code is unnecessary in any browser that supports the unprefixed version of line-clamp,
       but neither does it have any detrimental effect,
       and it broadens the test to browsers that only support the prefixed version */

    -webkit-line-clamp: 3;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.ref {
    border-color: orange;
}
</style>

<p>Test passes if the box with a blue frame is identical to the orange one.

<div class=test>12345678 123456 123456789012 123</div>

<div class=ref>12345678<br>123456<br>…</div>

<!--
unbalanced layout without clamping:
    |---------|
    |12345678 |
    |123456   |
    |123456789012
    |123      |
    |---------|

unbalanced layout after clamping:
    |---------|
    |12345678 |
    |123456   |
    |…        |
    |---------|

There is no way to balance this without changing the number of lines.
-->