Bootstrap layout: Content not filling browser - html

Question

I have an administration screen with a sidebar. Everything works well except that the main content does not fill the browser width. I have tried many options but I am unable to solve this puzzle. Your help and advise is appreciated
Here is my HTML
<!-- top navigation menu element -->
<div id="wrap">
<div class="container-fluid">
<div class="row row-offcanvas row-offcanvas-left">
<div class="col-sm-3 col-md-2 sidebar-offcanvas" id="sidebar" role="navigation">
<ul class="nav nav-sidebar">
<li id="departments">
<i class="fa fa-fw fa-sitemap"></i> <span>Departments</span>
</li>
<li id="permissions">
<i class="fa fa-fw fa-key"></i> <span>Permissions</span> </a>
</li>
</ul>
</div><!-- .col-sm-3 .col-md-2 .sidebar-offcanvas -->
<div class="col-sm-9 col-md-10 main">
<!--toggle sidebar button-->
<p class="visible-xs">
<button type="button" class="btn btn-primary btn-xs" data-toggle="offcanvas">
<i class="glyphicon glyphicon-chevron-left"></i>
</button>
</p>
<h1 class="page-header inline-page-title">Groups</h1>
<!-- main content -->
</div><!-- .col-sm-9 .col-md-10 .main -->
</div> <!-- .row .row-offcanvas .row-offcanvas-left -->
</div><!-- .container-fluid -->
</div> <!-- #wrap -->
And my CSS
body {
padding-top: 50px;
background-color: #f5f5f5;
}
.main {
padding: 20px;
background-color: #fff;
border-left: 1px solid #dae3e9;
height: 100%;
box-shadow: -3px 3px 3px -2px #f1f1f3;
}
.sidebar-offcanvas {
min-height: 100%;
}
A clearer image showing the gap on the right side -

Answer 1

Found the problem - it was this piece of CSS that was causing the issue. I removed it and it works well - however leaving me with another problem. How do I constrain the width of my left side navbar without losing the responsive nature? Any suggestions are appreciated.
#media only screen
and (min-width : 1200px) {
.sidebar-offcanvas {
width: 180px;
}
}