html - <div> into a <tr>: is it correct?

Question

Is this code correct?

<table>
    <tr>
        <td>...</td>
    </tr>

    <tr>
        <div>...</div>
    </tr>

    <tr>
        <td>...</td>
    </tr>    
</table>    

don't know for semantic (and W3C rules). What can you say about?

Answer 1

No it is not valid. tr elements can only contain th and td elements. From the HTML4 specification:

<!ELEMENT TR       - O (TH|TD)+        -- table row -->
<!ATTLIST TR                           -- table row --
  %attrs;                              -- %coreattrs, %i18n, %events --
  %cellhalign;                         -- horizontal alignment in cells --
  %cellvalign;                         -- vertical alignment in cells --
>