.presentation{aspect-ratio:16/9;background:#000;cursor:pointer;overflow:hidden;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;width:100vw}.presentation__slide{bottom:0;display:none;left:0;position:absolute;right:0;top:0}.presentation__slide.is-active{display:block}.presentation__slide.is-previous{display:block;z-index:0}.presentation__image{background-position:50%;background-repeat:no-repeat;position:absolute}