[html] Two inline-block, width 50% elements wrap to second line

NOTE: In 2016, you can probably use flexbox to solve this problem easier.

This method works correctly IE7+ and all major browsers, it's been tried and tested in a number of complex viewport-based web applications.

<style>
    .container {
        font-size: 0;
    }

    .ie7 .column {
        font-size: 16px; 
        display: inline; 
        zoom: 1;
    }

    .ie8 .column {
        font-size:16px;
    }

    .ie9_and_newer .column { 
        display: inline-block; 
        width: 50%; 
        font-size: 1rem;
    }
</style>

<div class="container">
    <div class="column">text that can wrap</div>
    <div class="column">text that can wrap</div>
</div>

Live demo: http://output.jsbin.com/sekeco/2

The only downside to this method for IE7/8, is relying on body {font-size:??px} as basis for em/%-based font-sizing.

IE7/IE8 specific CSS could be served using IE's Conditional comments