i have a problem with a horizontal scroll bar, it appears much earlier then it should be. At the jsfiddle you can see a lot of unused space to the right of the form that causing the problem, but i cant figure out why is that space there. (marked as red square on the screenshot). You can find all CSS that im using in jsfiddle.
HTML
<div class="container-fluid">
<section class="content">
<div class="row-fluid">
<div class="span10 article">
<div class="block">
<div class="section">
<h4>Online Application</h4>
<div class="row-fluid form-horizontal">
<div class="span6">
<div class="control-group">
<label class="control-label">First Name</label>
<div class="controls">
<input type="text" name="contact_name_1">
</div>
</div>
<div class="control-group">
<label class="control-label">Last Name</label>
<div class="controls">
<input type="text" name="contact_name_2">
</div>
</div>
<div class="control-group">
<label class="control-label">Email</label>
<div class="controls">
<input type="text" name="contact_email">
</div>
</div>
<div class="control-group">
<label class="control-label">Home Phone</label>
<div class="controls">
<input type="text" name="contact_phone_home">
</div>
</div>
<div class="control-group">
<label class="control-label">Cell Phone</label>
<div class="controls">
<input type="text" name="contact_phone_cell">
</div>
</div>
<input type="button" value="Start Application" onClick="obertka25()">
</div>
</div>
</div>
</div>
</div>
</div>
</section></div>