JSFiddle - React, Tailwind, and code Playground

HTML

<div id="container">
    <div id="header">
    header
</div>
        <div id="content">
            Your content goes here
        </div>
        <div id="footer">
            Footer here
        </div>        
    </div>

CSS

* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            }
        
        body, html {
            height: 100%;
            }
        
        #container {
            background: #f00; /* styling only */
            width: 100%;
            margin: 0 auto;
            position: relative;
            min-height: 100%;
            height: 100%;
            
    
    
            }
        
        #content {
            padding-top: 100px;
            width: 980px;
            background-color: #FFF;
            margin: 0 auto;
            height: 100%;
            -webkit-box-shadow: 0px 1px 3px rgba(27, 57, 50, 0.44);
            -moz-box-shadow:    0px 1px 3px rgba(27, 57, 50, 0.44);
            box-shadow:         0px 1px 3px rgba(27, 57, 50, 0.44);
            -moz-border-radius: 5px;
            border-radius: 5px;
            position:relative;
            
            }
        
        #footer {
            position: absolute;
            left: 0;
            bottom: 0;
            height: 100px;
            width: 100%;
            background: #0f0;
            }
            
            #header {
            position: absolute;
            top:0;
            height: 100px;
            width: 100%;
            background: #0f0;
            z-index:1
            }