#btn-instalaciones{
	width:100%;
	min-width:960px;
	float:left;
	position:relative;
	margin-top:-110px;
	z-index:3;
	height:63px;
	}
#btn-intalaciones-960{
	width:960px;
	margin:auto;
	position:relative;
	height:63px;
	text-align:center;
	}
.prev-ins{
	background-color:transparent;
	border:none;
	cursor:pointer;
	position:relative;
	}
.next-ins{
	background-color:transparent;
	border:none;
	position:relative;
	cursor:pointer;
	}