JSFiddle - React, Tailwind, and code Playground

HTML

<body>
	<div id="head">
	</div>
	
	<div id="content">
	</div>
</body>

CSS

body{
margin: 0;
padding: 0;
background-color: #F7F7F7;
}

#head{
   width: 100%;
   height: 60px;
   background-color: #5B86E1;

   box-shadow: 0 10px 17px 0px #000000;
   position: fixed;
}

#content{
   width: 900px;
   padding-top: 60px;
   min-height: 100px;
   background-color: #FFFFFF;
   margin-right: auto;
   margin-left: auto;
}