JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.1/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.1/css/bootstrap-responsive.min.css">
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.1/css/bootstrap-combined.no-icons.min.css">
<div class="sidebar span4 hidden-phone">
    this is my fixed sidebar
</div>
<div class="main">
    <div class="container-fluid">
        <div class="row-fluid">
            <div class="span2">this is fluid</div>
            <div class="span3 offset1">yeah!</div>
            <div class="span6">Awesome!</div>
        </div>
        <div class="row-fluid">
            <div class="span6">1 half</div>
            <div class="span6">2 half</div>
        </div>
    </div>
</div>

CSS

.main {padding-left:140px;}


.sidebar {width:120px; float:left; height:200px; background:red;}


.span2 {background:yellow;}
.span3 {background:blue;}
.span6 {background:green;}


@media (max-width: 767px) {
.main {
padding-left: 0;
}
}