Occurs if table border style is set to border-right, -top, -left, or -bottom the code will be removed in FireFox. Does not occur in IE7 or 8

Does not occur using just "border" all inclusive attribute

To dupe:

1. Paste the following code into the html

<table style="border-top: red thick solid; width: 100%;">
     <tbody>
         <tr>
             <td>1</td>
         </tr>
         <tr>
             <td>2</td>
         </tr>
         <tr>
             <td>3</td>
         </tr>
     </tbody>
</table>

3. Go to Preview mode, notice the border is present

Duplicable on cutesoft site