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<!DOCTYPE html>
<title>CSS Box Alignment: non-normal align-content establishes block formatting context root on blocks</title>
<link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/contact">
<style>
html, body { margin: 0; font-size: 10px; line-height: 1; color: transparent; }
/* show bounds of test box without interfering with margin-collapsing */
.test { background: black; padding-right: 2px; margin: 0.5em; }
/* ensure float cannot penetrate */
.outer-float { float: left; height: 600px; /* reftest limit = 600px */
margin: 0 1em; background: gray; }
/* ensure float is contained */
.float { float: left; background: orange; height: 2em }
/* ensure margin is contained */
.in-flow { margin-top: 1em; background: orange }
/* reference code */
.test { overflow: hidden; display: flow-root; }
</style>
<div class="outer-float">FLT</div>
<div class="test">
<div class="in-flow"><div class="float">FLT</div>BLOCK</div>
</div>
<div class="test">
<div class="in-flow"><div class="float">FLT</div>BLOCK</div>
</div>
<div class="test">
<div class="in-flow"><div class="float">FLT</div>BLOCK</div>
</div>
<div class="test">
<div class="in-flow"><div class="float">FLT</div>BLOCK</div>
</div>
<div class="test">
<div class="in-flow"><div class="float">FLT</div>BLOCK</div>
</div>
<div class="test">
<div class="in-flow"><div class="float">FLT</div>BLOCK</div>
</div>
<div class="test">
<div class="in-flow"><div class="float">FLT</div>BLOCK</div>
</div>
<div class="test">
<div class="in-flow"><div class="float">FLT</div>BLOCK</div>
</div>
<div class="test">
<div class="in-flow"><div class="float">FLT</div>BLOCK</div>
</div>
<div class="test">
<div class="in-flow"><div class="float">FLT</div>BLOCK</div>
</div>
<div class="test">
<div class="in-flow"><div class="float">FLT</div>BLOCK</div>
</div>
<div class="test">
<div class="in-flow"><div class="float">FLT</div>BLOCK</div>
</div>
<div class="test">
<div class="in-flow"><div class="float">FLT</div>BLOCK</div>
</div>
<div class="test">
<div class="in-flow"><div class="float">FLT</div>BLOCK</div>
</div>
<div class="test" style="overflow: visible; display: block">
<div class="in-flow"><div class="float">FLT</div>BLOCK</div>
</div>