.slider_schwarz_wrap{position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:-1;overflow:hidden;}
.slide{position:absolute;top:0;left:0;width:100%;height:100%;background-size:cover;background-position:center;opacity:0;transition:opacity 2.8s;}
.slide.active{opacity:1;}