<!DOCTYPE html>
<html>
<head>
<script>
function boom()
{
var styleDeclaration = window.getComputedStyle(document.createElement('div'), null);
var cursorValue = styleDeclaration.getPropertyCSSValue('cursor');
cursorValue.item(1000);
}
</script>
</head>
<body onload="boom();"></body>
</html>