<!DOCTYPE html>
<html>
<head>
<style type="text/css">
div {
word-spacing: 20px;
float: left;
border: solid;
clear: both;
}
</style>
</head>
<body>
<p>The lines below should be the same width.</p>
<div>a b</div>
<div>a b</div>
</body>
</html>