3 window.onload = function() {
4 document.body.offsetTop;
5 document.getElementById('elm').style.display = 'none';
8 <p>There should be a blue <em>square</em> below.</p>
9 <div style="display:table; border-spacing:100px; background:blue;">
10 <div style="display:table-row-group;"><div id="elm"></div></div>
11 <div style="display:table-row-group;"><div style="width:10px; height:10px;"></div></div>