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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Overflow: when clamping by lines, margins of hidden boxes are ignored</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="match" href="reference/line-clamp-022-ref.html">
<meta name="assert" content="When line-clamp is used with a number of lines, the margins of boxes after the clamp point should not affect the sizing of boxes.">
<style>
.clamp {
line-clamp: 4;
font: 16px / 32px serif;
padding: 4px;
background-color: yellow;
border: 2px solid black;
}
.inner {
background-color: purple;
margin: 4px;
/* Having a border means the margins of the .inner boxes won't collapse */
border: 1px solid black;
}
.inner .inner {
background-color: orange;
white-space: pre;
}
.clamped-margin {
/* These boxes are after the clamp point, so their margins should not affect
* the size of their parent boxes. */
background-color: red;
margin: 20px;
height: 20px;
}
</style>
<div class="clamp">
<div class="inner">
<div class="inner">Line 1
Line 2
Line 3
Line 4
Line 5
Line 6</div>
<div class="clamped-margin"></div>
</div>
<div class="clamped-margin"></div>
</div>
<p>Following content.</p>
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