1<html xmlns="http://www.w3.org/1999/xhtml"> 2<head> 3<script> 4 5function boom() 6{ 7 var b = document.getElementById('b'); 8 b.style.counterIncrement = 'chicken'; 9 document.body.offsetHeight; 10 b.style.counterIncrement = ''; 11} 12 13</script> 14</head> 15 16<body onload="boom();"> 17 18<col id="a" span="2"></col><col id="b"></col> 19 20</body> 21</html> 22