title: HTML colspan 0 alternative
body: <p>I have a HTML table, and i would like to give the last row (in <code>&lt;tfoot&gt;</code> tag) only one cell expanding to all the table.</p>
  
  <p>I was using <code>colspan="0"</code>, then i saw that it only worked in Firefox.
  I then tried <code>colspan="100%"</code>.
  It works fine, but not pass the w3c validator (Very important in my project).</p>
  
  <p>Is there a working alternative ?</p>
  
  <p>I saw people who use <code>colspan="1000"</code>, not a bad idea but are there some performance problems with this ?</p>
  
  <p>Thanks for advice.</p>