JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://twitter.github.com/bootstrap/assets/css/bootstrap.css">
<div class="container-fluid">
    <h1 class="page-header">Float Issue</h1>
    
    <div class="progress">
        <div class="bar" style="width: 20%"></div>
        <div class="bar" style="width: 20%"></div>
        <div class="bar" style="width: 20%"></div>
        <div class="bar" style="width: 20%"></div>
        <div class="bar bar-remaining" style="width: 100%"></div>
    </div>
    
    <div class="progress">
        <div class="bar" style="width: 25%"></div>
        <div class="bar" style="width: 25%"></div>
        <div class="bar bar-remaining" style="width: 25%"></div>
        <div class="bar bar-remaining" style="width: 25%"></div>
    </div>
    
    <div class="progress">
        <div class="bar" style="width: 16.6667%"></div>
        <div class="bar" style="width: 16.6667%"></div>
        <div class="bar bar-remaining" style="width: 16.6667%"></div>
        <div class="bar bar-remaining" style="width: 16.6667%"></div>
        <div class="bar bar-remaining" style="width: 16.6667%"></div>
        <div class="bar bar-remaining" style="width: 16.6667%"></div>
    </div>
</div>

CSS

.progress {
    border: 1px solid black;
    box-sizing: border-box;
}
.progress .bar {
    float: left;
    border-right: 1px solid white;
}

.progress .bar.bar-remaining {
    filter: none;
    background: red;
}