night to day in 4s

dabblet.css

/* night to day in 4s */

/* only tested in Firefox 8 so far but should work in other 
*  browsers as well
*/

body {
	background: black;
	margin: 100px;
	transition: all 4s;
	width: 100px;
	height: 100px
}

body:before {
	position: absolute;
	font-family: Arial, sans-serif;
	font-size: 40px;
	content: "Night";
	color: #fff;
	bottom: 120px;
	transition: all 3s
}


div {
	width: 500px;
	height: 300px;
	border-radius: 50%;
	transition: all 2s;
	position: relative
}

div:before {
	position: absolute;
	content: "";
	width: 30px;
	height: 30px;
	border-radius: 50%;
	left: -20px;
	top: 130px;
	box-shadow: 0 0 50px #CC9900;
	transition: all 2s;
	background: linear-gradient(center bottom , #fff 22%, #ccc 100%) repeat scroll 0 0 #FFCC33;
}

html:hover div:before {
	width: 60px;
	height: 60px;
	background: linear-gradient(center bottom , #CC9900 22%, #FFDB70 100%) repeat scroll 0 0 #FFCC33;}

html:hover div{transform: rotate(180deg)}

html:hover body {background: #6E87CC}

html:hover body:before {content: "Day";}

dabblet.html

<div></div>

settings.json

{"view":"split","prefixfree":"1","page":"css"}