Flexible background positioning

dabblet.css

/**
 * Flexible background positioning
 * via calc()
 */

div {
	background: url(http://csssecrets.io/images/code-pirate.svg)
	            no-repeat bottom right #58a;
	background-position: calc(100% - 20px) calc(100% - 10px);
	
	/* Styling */
	max-width: 10em;
	min-height: 5em;
	padding: 10px;
	color: white;
	font: 100%/1 sans-serif;
}

dabblet.html

<div>Code Pirate</div>

dabblet.js

// alert('Hello world!');

settings.json

{"view":"split-vertical","fontsize":"100","seethrough":"","prefixfree":"1","page":"css"}