The first commented line is your dabblet’s title

dabblet.css

/**
 * The first commented line is your dabblet’s title
 */
html {
background: #f06;
background: linear-gradient(-135deg, #DE1473 0%, #fc0 50%, #09c 100%);
min-height: 100%;
}

body {
	padding: 0;
	margin: 0;
}
#body {
	border: 4px solid transparent;
	box-sizing: border-box;
	width: 100%;
	height: 100%;
	position: absolute;
}

#main {
	background: #f6f6f6;
	width: 100%;
	height: 100%;
	box-shadow: 0 2px 3px 1px rgba(0,0,0,.2)
}

dabblet.html

<div id="body">
	<div id="main"></div>
</div>

settings.json

{"view":"separate","fontsize":"100","seethrough":"","prefixfree":"1","page":"all"}