div {
	padding: 2em;
	background-color: #ff0033;
	font-family: Helvetica, sans-serif;
	font-weight: bold;
	text-align: center;
	-moz-transition-property: background-color;
	-moz-transition-duration: 2s;
	-webkit-transition-property: background-color;
	-webkit-transition-duration: 2s;
	-o-transition-property: background-color;
	-o-transition-duration: 2s;
	transition-property: background-color;
	transition-duration: 2s;
}
div:hover {
	background-color: #ffff33;
}