*{
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}
.split{
	display: table;
	width: 100%;	
}
.split-item{
	display: table-cell;
	padding: 80px;
	width: 50%;
}
.split-left{
	background: #000;
	color: #fff;
	position: relative;
}
.split-left__inner{
	height: 100%;
	position: fixed;
	width: 50%;
}
.split-right__inner{
	height: 8000px;
}