@media screen and (max-width: 640px) {
	.demo .uk-background-cover {
		min-height: calc(-72px + 95vh) !important;
	}
	.wk-slideshow.wk-slideshow-fullscreen.wk-overlay-active, 
	.demo.home-main-banner .wk-slideshow{
		height: calc(-72px + 95vh );
	}
	.demo.home-main-banner, .demo.home-main-banner .wk-slideshow li {
		min-height: calc(-72px + 95vh) !important;
		height: calc(-72px + 95vh) !important;
	}
}