#viewport{
    width: 790px;

    width: 1024px;
    overflow:hidden;
	margin: 0 auto;
}
#viewport ul{
    position: relative;
    padding: 0;
}
#viewport li{
    float: left;
    list-style: none;
}
#viewport li a {
    float: left;
    width: 150px;
	height: 150px;
	border: 2px solid #FFF;
	border-radius: 5px;
}
#previous, #next {
	width: 20px;
	height: 30px;
	display: block;
	cursor: pointer;
	position: absolute;
	bottom: 75px;			
}
#previous {
	left: 30px;
	background: url('../img/setas-galeria.png') left top no-repeat;
}	
#next {
	right: 35px;
	background: url('../img/setas-galeria.png') right top no-repeat;	
}
#previous:hover {
	background-position: left -28px;	
}
#next:hover {
	background-position: right -28px;	
}