Side Menu

<ul>
    <li><a href="3">Some Page 1</a></li>
    <li><a href="3">Some Page 2</a></li>
    <li><a href="3">Some Page 3</a>
    <ul>
        <li><a href="3">Some SubPage 1</a></li>
        <li><a href="3">Some SubPage 2</a></li>
        <li><a href="3">Some SubPage 3</a></li>
    </ul>
    </li>
    <li><a href="3">Some Page 4</a></li>
    <li><a href="3">Some Page 5</a></li>
    <li><a href="3">Some Page 6</a></li>
</ul>

The same layout of the menu can be used also in the DDR Menu module by entering "DNNStandardSide" in the field "Menu style", below the "Menu settings" tab.