.slider-wrapper {
	background: grey;
	position: relative;
	overflow: hidden;
}
.slider-wrapper .slider-item {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	overflow: hidden;
	background-repeat: no-repeat;
	background-size: cover;
	background-position: center;
}