JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html> 
<html> 
<head> 
<title>background-size: contain;</title> 

<body>
<div id="please_expand">
    <h1>Example J - background-size: contain;</h1>
</div>
</body> 
</html>

CSS

html,body,#please_expand { height: 100%; }

#please_expand {
background-image: url(http://img523.imageshack.us/img523/1430/naturaerowoods.jpg);
background-repeat: no-repeat;
background-attachment: fixed;
background-color: #EEE;
background-size: contain;
}