Edits

gistfile1.html

<!-- div#suggested-topics-container: got rid of the wrapping div'cos the ol is also a block level element -->
<ol id="suggested-topics-list">
    <li class="suggested-topic clear-fix">
        <!-- div.suggested-topic: got rid of the wrapping div and moved the class to the li since its wrapping the content  -->
        <!-- changes the divs to <p> and <span> just to please the semantic gods -->
        <p>how to make a rain barrel</p>
        <!-- div.clear-fix: got rid of the wraping div and move the clearfix to the wrapping <li> since it wraps the floats we are trying the clear -->
        <span class="trend up">56%</span>
        <span class="volume">100,000</span>
    </li>
</ol>