Full Width Tabs using Bootstrap - NOT Fixed by removing table-layout: fixed!

HTML

<link rel="stylesheet" href="http://twitter.github.com/bootstrap/assets/css/bootstrap.css">
<script src="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/js/bootstrap.min.js"></script>
<div class="tabbable full-width-tabs">
    <ul class="nav nav-tabs">
        <li class="active"><a href="#tab-one" data-toggle="tab">Tabheader 1</a></li>
        <li><a href="#tab-two" data-toggle="tab">Tab 2</a></li>
    </ul>
    <div class="tab-content">
        <div class="tab-pane active" id="tab-one">
            I'm in Tab 1.
        </div>
        <div class="tab-pane" id="tab-two">
            Howdy, I'm in Tab 2. Howdy, I'm in Tab 2. Howdy, I'm in Tab 2. Howdy, I'm in Tab 2. 
        </div>  
    </div> 
</div> <!-- /tabbable -->

CSS

body {
    padding: 5%;
}
.full-width-tabs > ul.nav.nav-tabs {
    display: table;
    width: 100%;
    /*table-layout: fixed;*/
}
.full-width-tabs > ul.nav.nav-tabs > li {
    float: none;
    display: table-cell;
}
.full-width-tabs > ul.nav.nav-tabs > li > a {
    text-align: center;
    margin-bottom: -1px;
}