.background-slider{z-index:-1;pointer-events:none;width:100%;height:100%;position:fixed;left:0;overflow:clip}.background-slide{opacity:0;pointer-events:none;background-position:50%;background-size:cover;width:100%;height:100%;transition:opacity 1s ease-in-out;position:absolute;top:0;left:0;overflow:clip;-webkit-mask-image:radial-gradient(circle,#000 70%,#0000 100%);mask-image:radial-gradient(circle,#000 70%,#0000 100%);-webkit-mask-size:cover;mask-size:cover;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat}.background-slide.active{opacity:1;z-index:1}