JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>

</head>
 
<body>





<div id="c">


 <div id="content">

  <div id="left">left</div>
  
  <div id="right">right</div>
 
 content
 </div>



</div>
</body>
</html>

</body>
</html>

CSS

*{margin:0;padding:0;}
html,body {height:100%;}
#c {background:#b3b3b3;min-height:100%;width:1000px;margin:0 auto;}
#content {background:#ccc;width:1000px;margin:0 auto;}

#left {width:495px;background:#f4f4f4;display:inline-block;}
#right {width:500px;background:#fff;display:inline-block;}