<div class="hiddenWidgetsDiv">
    <!-- widgets in this container are hidden in the UI by default -->
    <div class="component-container hiddenWidgetsContainer ibmDndRow wpthemeCol12of12 wpthemeFull" name="ibmHiddenWidgets"></div>
    <div style="clear:both"></div>
</div>
<!-- this layout has 3 columns that take up 20%, 60% and 20% of the space respectively across the page -->
<div class="wptheme3Col wpthemeUnequal">
    <div class="component-container wpthemeCol wpthemeTertiaryContainer ibmDndColumn wpthemeLeft wpthemeCol1of5 wpthemeThin" name="left"></div>
    <div class="component-container wpthemeCol wpthemePrimaryContainer ibmDndColumn wpthemeLeft wpthemeCol3of5 wpthemeMedium" name="ibmMainContainer"></div>
    <div class="component-container wpthemeCol wpthemeSecondaryContainer ibmDndColumn wpthemeLeft wpthemeCol1of5 wpthemeThin" name="right"></div>
</div>