<div runat="server" class="sf_cols customClass">
  <div runat="server" class="sf_colsOut sf_2cols_1_75 CustomClass">
    <div runat="server" class="sf_colsIn sf_2col_1in_75">
    </div>
  </div>
  <div runat="server" class="sf_colsOut sf_2cols_2_25 CustomClass">
    <div runat="server" class="sf_colsIn sf_2col_2in_25">
    </div>
  </div>
</div>