html, body, main,.carousel, .carousel-inner, .carousel-item, .carousel-item>div{
	min-height: 100vh;
	position: relative;
}
main{
	max-width: 100%;
	width: 400px;
	margin: 0 auto;
}
@media (min-width: 968px) {
	main{
		border: 1px solid #ccc;
	}
}