#chromosomes {
	position:relative;
	margin:0 auto;
}

img.bottom {
	position:relative;
	z-index:1;
}
img.top {
	position:absolute;
	z-index:2;
	left:0px;
	top:0px;
}
		
div.chrpage {
	position:relative;
	height:auto;
	width:auto;
	margin:0 auto;
	border: 1px;
	overflow: hidden;
}
	

img.chr_img {
	position:absolute;
	top: 0px;
	-webkit-transition: width .5s linear, height .5s linear;
	-moz-transition: width .5s linear, height .5s linear;
	-o-transition: width .5s linear, height .5s linear;
	-ms-transition: width .5s linear, height .5s linear;
	transition: width .5s linear, height .5s linear;
}

b.button {
	font-size: 135%;
	vertical-align:top;
}

b.button:active {
	color: #0404cc;
}

.chrSelector {
	color: #0404cc;
}