JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
        <div class="header"></div>
        <div class="content">D</div>
        <div class="footer"></div>
    </div>

CSS

html,body
{
    padding: 0px;
    margin: 0px;
    color: #555;
    font-size: 20px;
    font-family:  "Open Sans","lucida grande","Segoe UI",arial,verdana,"lucida sans unicode",tahoma,sans-serif;
    height: 100%;
}

.container
{
    height: 100%;   
    background-color: Green;
    position: relative;
}

.header 
{
position: relative;
    height: 150px;
    width: 100%;
    background-color: Red;
z-index: 1; /* higher than z-index of content */
}

.content
{
    width: 100%;
position: relative;
top: -150px; /* - height of header */
padding-top: 150px; /* + height of header */
margin-bottom: -350px; /* - (height of header + height of footer) */
padding-bottom: 200px; /* height of footer */
height: auto;
min-height: 100%;
box-sizing: border-box;
z-index:0; /* lower than z-index of header */
    background-color: Black;
}

.footer
{   
    height: 200px;
    width: 100%;
    background-color: Violet;
position: relative;
    bottom: 0px;
}