Boston skin widget_rows macro generates extra space

Summary: Firefox renders the Boston skin widget_rows macro with an extra 1em of space at the top of the table for each widget row in the table. For an edit view of a content object with lots of fields, it's very noticeable. It's a trivial fix, though.

Details:
In Boston skin zope/app/boston/browser/widget_macros.pt, the widget_rows macro has a repeat like this:

      <table id="widgets" border="0" cellspacing="0" cellpadding="0">
        <div class="row" tal:repeat="widget view/widgets">
          <metal:block define-macro="widget_row">
            <tr>
              ...
            </tr>
          </metal:block>
        </div>
      </table>

generating html like:
      <table id="widgets" border="0" cellspacing="0" cellpadding="0">
        <div class="row" >
            <tr>
              ...
            </tr>
        </div>
        <div class="row" >
            <tr>
              ...
            </tr>
        </div>
        <div class="row" >
            <tr>
              ...
            </tr>
        </div>
        ....
      </table>

However, Firefox "ejects" the <div> from the table and renders it like this:
        <div class="row" > </div>
        <div class="row" > </div>
        <div class="row" > </div>
         ...
      <table id="widgets" border="0" cellspacing="0" cellpadding="0">
            <tr>
              ...
            </tr>
            <tr>
              ...
            </tr>
           <tr>
              ...
            </tr>
        ....
      </table>

Since each div.row has a style.padding-top= 1em, For each widget row, 1em of blank space is seen above the table. I wouldn't have noticed this except for a content object I have with lots of fields.

Internet explorer doesn't have a problem with the code. I don't know which browser is correct, but adding tal:omit-tag as follows will eliminate the problem.

line 6: <div class="row" tal:omit-tag="" tal:repeat="widget view/widgets">