#wide-haveyoursay-button
{
	display: block;
	width: 553px;
	height: 31px;
	background-image: url(http://www.scienceoxford.com/images/46.jpg);
	clear: both;
	text-indent: -9999px;
}

#wide-haveyoursay-button:hover
{
	background-position: bottom left;
}




.evolution-home-grid {
	list-style-type: none !important;
	list-style-image: none !important;
	margin: 0 !important;
	padding: 0 !important;
}



.evolution-home-grid li {
	margin: 0 !important;
	padding: 0 !important;
	float: left;
}



.evolution-home-grid .button {
	display: block;
	width: 276px;
	height: 100px;
	background-position: top left;
	text-indent: -9999px;
}

.evolution-home-grid .button:hover {
	background-position: bottom left;
}

.evolution-home-grid .biology {
	background-image: url(http://www.scienceoxford.com/images/29.png);
}


.evolution-home-grid .biology:hover {
	background-position: 0px -100px;
}

.evolution-home-grid .video {
	background-image: url(http://www.scienceoxford.com/images/30.png);
}


.evolution-home-grid .video:hover {
	background-position: 0px -100px;
}

.evolution-home-grid .blog {
	background-image: url(http://www.scienceoxford.com/images/31.png);
}


.evolution-home-grid .blog:hover {
	background-position: 0px -100px;
}

.evolution-home-grid .picture {
	background-image: url(http://www.scienceoxford.com/images/32.png);
}


.evolution-home-grid .picture:hover {
	background-position: 0px -100px;
}