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- This WPT test may be referenced by the following Test IDs:
- /css/css-overflow/line-clamp/line-clamp-with-fixed-pos-001.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Overflow: fixed pos whose containing block is outside the line-clamp container gets painted</title>
<link rel="author" title="Andreu Botella" href="mailto:abotella@igalia.com">
<link rel="match" href="reference/line-clamp-with-abspos-001-ref.html">
<meta name="assert" content="Fixed positioned boxes in a line-clamp container are hidden if and only if their fixed positioning containing block precedes or contains the clamp point. In this case, the containing block is the layout viewport, so the fixed-pos gets shown.">
<style>
.clamp {
line-clamp: 4;
font: 16px / 32px serif;
padding: 0 4px;
white-space: pre;
background-color: yellow;
}
.fixed {
position: fixed;
top: 0;
left: 0;
width: 20px;
height: 20px;
background-color: skyblue;
}
</style>
<div class="clamp"><div class="fixed"></div>Line 1
Line 2
Line 3
Line 4
Line 5</div>