.slider-wrapper {
	position: relative;
	left: 0;
	will-change: transform;
	padding: 0;
	animation: slider 10s infinite;
}

.slide-item {
	width: 300px;
	height: 200px;
	float: left;
	position: relative;
}
.slide-item img{
    width: 300px;
	height: 200px;
}

@keyframes slider {
	0% { transform: translateX(0); }
	33% { transform: translateX(-320px); }
	66% { transform: translateX(-620px); }
	100% { transform: translateX(0); }
}
@media screen and (max-width:480px){
	.slide-item {
		width: 150px;
		height: 100px;
	}
	.slide-item img{
		width: 150px;
		height: 100px;
	}
	@keyframes slider {
		0% { transform: translateX(0); }
		33% { transform: translateX(-150px); }
		66% { transform: translateX(-300px); }
		100% { transform: translateX(0); }
	}
}