<l:pane> uses tables. Create a <div> based alternative e.g. <l:divpane>.

E.g.
<l:divpane>
<l:divpaneRow>
<l:divpaneCell> etc </l:divpaneCell>
<l:divpaneCell> etc </l:divpaneCell>
</l:divpaneRow>
</l:divpane>

With attributes to control cell with etc.