[VE][64] Add Subject Here

Working on a table with "altrow" attributes but it won't validate. 

Can't figure out why.

 

  <div id="content">

  <table summary="The table contains a description of the menu items prices
from JavaJam.">

   <tr>

     <th colspan="2" align="center">Menu Items</th>

     <tr class="altrow">

     <th>Just Java</th>

     <td>Regular house blend, decaffeinated coffee, or flavor of the day.<br
/>Endless Cup $2.00</td>

  </tr>

   <tr>

     <th>Cafe au Lait</th>

     <td>House blended coffee infused into a smooth, steamed milk.<br
/>Single $2.00 Double $4.00</td>

  </tr>

    <tr class="altrow">

     <th>Iced Cappuccino</th>

     <td>Sweetened espresso blended with icy-cold milk an dserved in a
chilled glass $4.75</td>

  </tr>

 </table>

  </div>

Error [64]: "document type does not allow element X here" 
NOTE: Whenever possible, give the address of the document you were checking.