JSFiddle - React, Tailwind, and code Playground

HTML

<div id="container">
    <header></header>
    <div id="content">
        
    </div>
    <footer></footer>
</div>

CSS

html, body {
    background: #ff3333;
    margin:0;
    padding:0;
    height:100%;
}

#container {
    position:relative;
    background: #FFF;
    margin: 0 auto;
    width: 200px;
    min-height:100%;
}
header {
    margin-top: 40px;
    height: 60px;
    background: #888;
}
#content {
    background: #FFF;
    min-height: 200px;
    padding-bottom: 60px; /*FOOTER HEIGHT*/
}

footer {
    position:absolute;
    bottom: 0;
    width: 200px;
    height: 60px;
    background: blue;
}