import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

This commit is contained in:
Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
150858 changed files with 23884658 additions and 0 deletions

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<!DOCTYPE html>
<html>
<meta charset="utf-8">
<style>
body>div { margin: 50px 20px; width: 400px; height: 500px; border: 5px solid blue; }
.abc { display: inline-block; border: 2px solid red; inline-size: 30px; }
.test { background: #aaa; width: 2em; }
.vlr { writing-mode: vertical-lr; }
.rel { position: relative; }
iframe { position: absolute; background: yellow; border: 5px solid green; }
</style>
<body>
<div class="vlr">
<div class="test rel"><span class="abc">abc</span><iframe src="data:text/html,hello"></iframe></div>
</div>