@keyframes slideshow {
0% { left: 0%; }
20% { left: 0%; }
40% { left: -100%; }
55% { left: -100%; }
70% { left: -200%; }
85% { left: -200%; }
100% { left: -300%; }
}
body { margin: 0; } 
div#slider { overflow: hidden; }
div#slider figure img { width: 20%; float: left; }
div#slider figure { 
  position: relative;
  width: 500%;
  margin: 0;
  left: 0;
  text-align: left;
  font-size: 0;

}