It's strange that the text below the "Support Us" section is showing up in bold. I tried changing the font style to normal, but it's still bold. The JSFiddle layout may appear messy, but if you scroll right, you'll see the issue.
Here's the HTML Code for that particular section:
<div id="rightcolumn">
<div id="supportus">
<div class="TitleBG">
<h5>SUPPORT US</h5>
</div>
<div style="float: left;margin-left:10px;margin-top:10px;outline:#747474 solid thin;">
<img src="images/marathon.jpg" width="500" height="265" />
</div>
<div style="float:left; text-align: left">
The Baltimore Running Festival
<br></br>
One of the more popular races of the Baltimore Running Festival is the Team Relay. Running the same course as the marathoners,
the Team Relay consists of FOUR participants per team with each runner selecting a portion of the marathon course to run.
<br></br>
Our Cause
<br></br>
We are participating in our first-ever team relay to raise money to support our research. With your help, we can raise money
to continue our fight against Lyme disease and Post-treatment Lyme disease syndrome.
</div>
And here's the CSS:
#supportus {
min-height: 645px;
margin-top: 20px;
margin-bottom: 20px;
background: #ffffff;
outline:#e8e8e8 solid thin;
font-family:"Helvetica",Arial,sans-serif;
font-size:16px;
font-style:normal;
}