.rtv-slide {
    position: absolute;
    background-size:cover;
    background-position: center;
    height: 100%;
    width: 100%;
    opacity: 0;
    animation: rtv-xfade infinite;
}
 
@keyframes rtv-xfade {
   0% {
      opacity: 0;
   }
   7% {
      opacity:1;
   }
   50% {
      opacity: 1;
   }
   57% {
      opacity:0;
   }
   100% {
      opacity:0;
   }
}