The first commented line is your dabblet’s title

dabblet.css

/**
 * The first commented line is your dabblet’s title
 */

body {
	padding-top: 50px;
}

div {
	width: 100px; height: 100px;
	margin-top: 50px;
	background: deeppink;
}

div:target {
	background: yellowgreen;
	transition-delay: 0;
}

dabblet.html

<a href="#foo">Go to #foo</a>
<a href="#">Remove #foo</a>
<div id="foo"></div>

dabblet.js

// alert('Hello world!');

settings.json

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