<div class="tech-slideshow">
  <div class="mover-1"></div>
  <div class="mover-2"></div>
</div>

.tech-slideshow {
  height: 200px;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
  transform: translate3d(0, 0, 0);
}

.tech-slideshow > div {
  height: 200px;
  width: 2526px;
  background: url(https://www.webhek.com/wordpress/wp-content/uploads/2018/03/collage.jpg);
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  transform: translate3d(0, 0, 0);
}
.tech-slideshow .mover-1 {
  animation: moveSlideshow 60s linear infinite;
}
.tech-slideshow .mover-2 {
  opacity: 0;
  transition: opacity 0.5s ease-out;
  background-position: 0 -200px;
  animation: moveSlideshow 20s linear infinite;
}
.tech-slideshow:hover .mover-2 {
  opacity: 1;
}

@keyframes moveSlideshow {
  100% { 
    transform: translateX(-66.6666%);  
  }
}