.sp50{padding:5% 0;}
.sp70{padding:7% 0;}
.container_topbg{position: relative;}
.container_topbg:before{
	content: "";
	display: block;
	position: absolute;
	z-index: 10;
	width: 100%;
	height: 100%;
	top: 0;
	left: 0;
	z-index: 1;
	background: -webkit-gradient(linear, left top, left bottom, from(#000), color-stop(10%, rgba(0, 0, 0, 0)), to(rgba(0, 0, 0, 0)));
	background: -webkit-linear-gradient(top, #000 0%, rgba(0, 0, 0, 0) 10%, rgba(0, 0, 0, 0) 100%);
	background: -o-linear-gradient(top, #000 0%, rgba(0, 0, 0, 0) 10%, rgba(0, 0, 0, 0) 100%);
	background: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0) 10%, rgba(0, 0, 0, 0) 100%);
}
.blockbox:before,.block:before{
	content: "";
	display: block;
	position: absolute;
	z-index: 10;
	width: 100%;
	height: 100%;
	top: 0;
	left: 0;
	z-index: 1;
	background: -webkit-gradient(linear, left top, left bottom, from(#000), color-stop(10%, rgba(0, 0, 0, 0)), to(rgba(0, 0, 0, 0)));
	background: -webkit-linear-gradient(top, #000 0%, rgba(0, 0, 0, 0) 10%, rgba(0, 0, 0, 0) 100%);
	background: -o-linear-gradient(top, #000 0%, rgba(0, 0, 0, 0) 10%, rgba(0, 0, 0, 0) 100%);
	background: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0) 10%, rgba(0, 0, 0, 0) 100%);
}