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>
<head>
<style>
fieldset {
display: inline; background: rgba(255, 255, 0, 0.7); color: black;
}
div { background: green; position:relative; z-index:1; }
div#one { float: left; }
</style>
</head>
<body>
<form>
<fieldset>
<div id="one">I should be black text on a green background</div>
</fieldset>
<fieldset>
<div>I should be black text on a green background</div>
</fieldset>
</form>
</body>
</html>