div#demo {
	text-align: center;
}
#demo img{
	padding: 0px;
	margin: 3px;

}
div#prev {
	font-family: Arial, Helvetica, sans-serif;
	font-size: small;
	color: #669966;
	vertical-align: middle;
	font-weight: bold;
	text-align: center;
	float: left;
	width: auto;
	margin-top: 150px;

}
div#next {
	font-family: Arial, Helvetica, sans-serif;
	font-size: small;
	color: #669966;
	vertical-align: middle;
	font-weight: bold;
	text-align: center;
	float: right;
	width: auto;
	margin-top: 150px;
}