JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://www.adweek.com/wp-content/uploads/files/blogs/istock-unfinished-business-hed-2015.jpg"></script>
<!DOCTYPE html>
<html>

  <head>
   
  </head>

  <body>
    <div class="bg">
    
    </div>
   
  </body>

</html>

CSS

.bg {
  background-image: url("http://www.adweek.com/wp-content/uploads/files/blogs/istock-unfinished-business-hed-2015.jpg");
  width:100%;
  height:100%;
  background-size:cover;
  background-repeat: no-repeat;
  position:absolute;
}