JSFiddle - React, Tailwind, and code Playground

HTML

<br /><br /><br />

<div id="root">
    <div id="left_side">LEFT</div>
    <div id="right_side">RIGHT</div>
    <div id="center_s">CENTER</div>
</div>

CSS

#root {
    background-color: #eee;
}

#left_side {
    float: left;
}

#center_s {
    margin-left: auto;
    margin-right: auto;
    width: 65px;
    background-color: #ccc;
}

#right_side {
    float: right;
}