JSFiddle - React, Tailwind, and code Playground

by geekrose Lee

HTML

<body class = 'white-menu'>
         <nav class = 'side-menu'>  This is a side menu </nav>  
    </body>

CSS

.side-menu{
    background-color:green;
    position: fixed;
    top: 0;
    left: 40px;
    width: 210px;
    height: 100%;
 }

.white-menu .side-menu {
   left: 20px;
 }