.slider-img {
  width: 800px;
  height: 188px;
  animation: scroll 120s linear infinite;
}

.slide-track {
  width: 100%;
  display: flex;
  gap: 1em;
  overflow: hidden;
}

.slider {
  margin-top: 20px;
  background-color: darkgrey;
  padding: 8em 0;
}

@keyframes scroll {
  0% {transform: translateX(0);}
  100% {transform: translatex(-400%)}
}