<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
<html dir="ltr" lang="en">
<head>
 <title>bug with procent height</title>
</head>
<body>
<div style='width:1000px; background:#f0f0f0'>
width:1000px
<div style='width: 509px; background: #ddd;'>&lt;div style='width: 509px; background: #ddd;'></div>
<div style='width: 50.9%; background: #ccc;'>&lt;div style='width: 50.9%; background: #ccc;'></div>
First div (width:509px) must be equal with second (width: 50.9%;)
</div>
</body>
</html>