<!doctype html>
<title>Reference for Anonymous button content box</title>
<style>
body { margin: 0 }
.button { width: 124px; height: 124px; background: papayawhip; border: 2px solid; display: table-cell; vertical-align: middle; text-align: center; box-sizing: border-box; }
.top { vertical-align: top }
.left { text-align: left }
.float { display: block; float: left; }
body > div { clear: left; }
.button > div { width: 50px; height: 50px; border: solid }
.button > .tall { height: 150px }
.button > .wide { width: 150px; margin-top: 32px }
</style>
<div>
 <div class=button>input</div>
 <div class="button">input grid</div>
 <div class="button">input flex</div>
 <div class=button>button</div>
</div>
<div>
 <div class=button style="text-align: left">button left</div>
 <div class=button><div>div</div></div>
 <div class="button top">grid</div>
 <div class="button top"><div>grid</div></div>
</div>
<div>
 <div class="button top left float">flex</div>
 <div class="button top float"><div>flex</div></div>
 <div class="button float"><div class=tall>tall</div></div>
 <div class="button float"><div class=wide>wide</div></div>
</div>
