JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrapper">
    <div class="left"></div>
    <div class="central"></div>
    <div class="right"></div>
</div>

CSS

.wrapper {
    width:100%;
    height:50px;
}
.central {
    width:960px;
    height:50px
    margin:0 auto;
    float:none;
    background-color:#CCCCCC;
}
.left {
    width:auto;
    height:50px
    float:none;
    background-color:#ABC123;
}
.right {
    width:auto;
    height:50px
    float:none;
    background-color:#123456;
}