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<!DOCTYPE html>
<meta charset="utf-8">
<title>A line-clamp container must establish an independent block formatting context</title>
<link rel="author" title="Seva Alipov" href="mailto:salipov@mozilla.com">
<link rel="stylesheet" href="/fonts/ahem.css">
<style>
.clamp-box {
border: 1px solid;
width: 50px;
height: fit-content;
display: flow-root;
font-family: ahem;
}
.float {
float: left;
width: 100px;
height: 100px;
border: 1px solid black;
padding: 10px;
font-family: ahem;
}
</style>
<div class="outer">
<div class="float">F</div>
<div class="clamp-box">A…</div>
</div>