<!DOCTYPE html>
<html>
<head>
<style id="ss" type="text/css">
div div:first-letter { font-size: 0%; }
</style>
<script type="text/javascript">
function boom()
{
document.getElementById("ss").textContent = "div div { height: 1px; }";
}
</script>
</head>
<body onload="boom();">
<div style="-moz-column-width: 1px; word-wrap: break-word;"><div>ABCDE</div></div>
</body>
</html>