Put the content and the nav in columns. See example below and see it in action here. You will have to resize the "Result" area in jsfiddle to see the effect of columns
.
<div class="row">
<div class="small-12 large-9 columns">
<p >This is your content area</p>
</div>
<div class="small-12 large-3 columns">
<div class="section-container vertical-nav" data-section="vertical-nav" style="">
<section class="section">
<p class="title"><a href="#">Privacy Policy</a></p>
</section>
<section class="section">
<p class="title"><a href="#">License agreement</a></p>
</section>
<section class="section">
<p class="title"><a href="#">DMCA</a></p>
</section>
<section class="section">
<p class="title"><a href="#">Proprietary Notices</a></p>
</section>
<section class="section">
<p class="title"><a href="#">Trademarks</a></p>
</section>
</div>
</div>
</div>