LeaVerou/dabblet.css

## dabblet.css
/**
 * Negative blur radius?
 */

div {
	width: 300px; height: 200px;
	background:yellowgreen;
	box-shadow: 0 0 -100px red inset;
}

## dabblet.html
<div></div>

## settings.json
{"view":"split-vertical","fontsize":"100","seethrough":"","prefixfree":"","page":"css"}
	/**
	* Negative blur radius?
	*/

	div {
	width: 300px; height: 200px;
	background:yellowgreen;
	box-shadow: 0 0 -100px red inset;
	}