Salve ragazzi,

stò imparando da poco i CSS e vorrei creare in CSS la seguente tabella HTML
codice:
<table width="680" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td width="200" height="150"></td>
    <td width="40" height="150"></td>
    <td width="200" height="150"></td>
    <td width="40" height="150"></td>
    <td width="200" height="150"></td>
  </tr>
  <tr>
    <td width="200" height="40"></td>
    <td width="40" height="40"></td>
    <td width="200" height="40"></td>
    <td width="40" height="40"></td>
    <td width="200" height="40"></td>
  </tr>
  <tr>
    <td width="200" height="150"></td>
    <td width="40" height="150"></td>
    <td width="200" height="150"></td>
    <td width="40" height="150"></td>
    <td width="200" height="150"></td>
  </tr>
  <tr>
    <td width="200" height="40"></td>
    <td width="40" height="40"></td>
    <td width="200" height="40"></td>
    <td width="40" height="40"></td>
    <td width="200" height="40"></td>
  </tr>
  <tr>
    <td width="200" height="150"></td>
    <td width="40" height="150"></td>
    <td width="200" height="150"></td>
    <td width="40" height="150"></td>
    <td width="200" height="150"></td>
  </tr>
</table>
ma non so proprio come incastonare/definire i div, mi date una mano?