JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrapper">
    <div id="header">
        Header
    </div>
    <div id="push"></div>
</div>
<div id="bottom">
    <div id="footer">
        Footer
    </div>
</div>

CSS

html, body { height: 100%; }

#wrapper { min-height: 100%; height: auto !important; height: 100%; margin: 0 auto -30px; }
#bottom, #push { height:30px;}

body { background:#333;}
#header { height:30px; background:#000; color:#fff; }
#footer { height:30px; background:#000; color:#fff; }