JSFiddle - React, Tailwind, and code Playground

by xraymutation

HTML

<div id="content">
    <p>This is some content.</p>
</div>

CSS

body {
    background-color: #f2f2f2;
}

#content:before {
    background-color: #999;
    color: #888;
    content:"bg - half of div";
    height: 100%;
    left: 0px;
    position: fixed;
    top: 0px;    
    width: 50%; 
    z-index: 1;
}

#content {
    font-family: Arial, sans-serif;
    font-weight: bold;
    padding: 30px;
    position: relative;    
    text-align: center;
    z-index: 2;   
}
#content * {
  position: relative;
  z-index:2;
}