<!DOCTYPE html> <html class="reftest-wait"> <head> <script type="text/javascript"> function doTest() { var t = document.getElementById("t"); for (var i = 0; i < 5; ++i) { document.body.offsetWidth; t.style.display = "none"; document.body.offsetWidth; t.style.display = "block"; } document.documentElement.className = ""; } </script> </head> <body onload="doTest()"> <span style="display: table"> <span style="display: table-row"> <span style="display: table-cell"> Cell </span> <span style="display: table-cell"> Cell </span> <span style="display: table-cell"> Cell </span> <span style="display: table-cell"> Cell </span> <span style="display: table-cell"> Cell </span> </span> <span style="display: table-row"> <span style="display: block" id="t">Which column?</span> </span> </span> </body> </html>