.slideshow { position:relative; max-width:100%; }
.slide { position:absolute; top:0; left:0; width:100%; height:100%; background-position:center; background-size:cover; }
.slideBtn { position:absolute; z-index:10; width:50px; height:100%; cursor:pointer; }
.leftBtn { left:0px; background:linear-gradient(to right, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0)); }
.rightBtn { right:0px; background:linear-gradient(to left, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0)); }
.pointer { position:absolute; top:50%; margin-top:-32px; z-index:9001; left:12px; opacity:0.8; }
.previous { width:0; height:0; border-top:20px solid transparent; border-bottom:20px solid transparent; border-right:20px solid white; }
.next { width:0; height:0; border-top:20px solid transparent; border-bottom:20px solid transparent; border-left:20px solid white; right:12px; left:auto; }
.hide { visibility:hidden; }