.prev_next {
	float : right;
	margin-right: 20px;
	margin-top: 140px;
}
.prev_next1, .prev_next2{
	position:absolute;
	top: 90px;
	z-index:2;
}
.prev_next1{
	left: 10px;

	float:left;
}
.prev_next2{
	float : right;
	right: 10px;
}
.banner a{
	color: #000000;
	text-decoration:none;
}