User-Agent: Opera/9.80 (Windows NT 5.1; U; en) Presto/2.2.15 Version/10.00 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 Any part of a button that is not inside the cell area of the first row is not clickable if the button has style "display: block". Reproducible: Always Steps to Reproduce: <!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <body> <table> <tbody> <tr> <td rowspan="2" valign="bottom"> <form method="post" action="/fleet/pages/booking/bookingInfo.seam.htm"> <input value="Button" style="display: block" type="submit"/> </form> </td> <td> <span>Foo</span> </td> </tr> <tr> <td> <span>Bar</span> </td> </tr> </tbody> </table> </body> </html> Sticking buttons in a table cell is a typical example of using tables for layout. We may frown upon this practice, but since this problem was introduced very recently, it may break quite a few web pages out there. It appears that for example Firefox 3.5.8 does not exhibit this problem. Therefore, I would argue fixing this bug.