I'm using the css styles from Twitter Bootstrap but I can't seem to align my "span16" div with my breadcrumb container. The breadcrumb container is the size I need. I've attached a screenshot to show the issue.

Here is my HTML:
<div class="container">
<ul class="breadcrumb" style="margin-top: 10px;">
<li><a href="search.php">Search</a>»</li>
<li class="active">Basic</li>
</ul>
<div class="row">
<div class="span16 well">
<form id="form_id" action="<?php echo $_SERVER['PHP_SELF'];?>" method="get">
<div class="row">
<div class="span-one-third">
Span 1/3
</div>
<div class="span-one-third">
Span 2/3
</div>
<div class="span-one-third">
Span 3/3
</div>
</div>
</form>
</div>
</div>
</div>
You can view the full page here
Any idea what the issue is?