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: 120px; height: 150px; border: 5px solid blue; }
.vlr { writing-mode: vertical-lr; }
.rel { position: relative; }
span { display: inline-block; padding: 5px; block-size: 1.5em; border: 2px solid red; }
p { position: absolute; margin: 0; padding: 2px; border: 2px solid green; }
</style>
<body>
<div class="vlr">
<div><span>abc def</span><p>xyzzy</p></div>
</div>