<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
        "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>Test Case</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8">

<style type="text/css">
.error:before {
    content: "You should just see a single line";
    display: table-cell;
}

.error:after {
    content: "of blue text.";
    display: table-cell;
}

</style>
</head>
<body>
<div class="error"><div style="display:table-cell">&nbsp;</div></div>
<script>
document.body.offsetLeft;
document.body.style.color = 'blue';
</script>
</body>
</html>