<!DOCTYPE html>
<html>
<head>
<title>Change regular block to multicol</title>
<script>
function test() {
var elm = document.getElementById('elm');
elm.offsetTop; // trigger layout
elm.style.WebkitColumns = 4;
elm.style.columns = 4;
}
</script>
</head>
<body onload="test()">
<p>You should see the word 'PASS' below.</p>
<div style="font-family:monospace; float:left;">
<div id="elm" style="-webkit-column-gap:0; column-gap:0; orphans:1; widows:1;">
P<br>
A<br>
S<br>
S<br>
</div>
</div>
</body>
</html>