The simplest way would be to set the display attribute to block, which would
force everything following the table to come below.
Knowingly your affinity for HTML-only solutions (8^), I suggest putting your
element inside another table with its width set to 100%, no padding, etc.
The outer table would block anything from showing up to the right of the
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<table> ... </table>