@keyframes scroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-1750px);
  }
}
.slider {
    
  width: 80vw;
  background: white;
  margin: auto;
  overflow: hidden;
  position: relative;
}
.slider::before, .slider::after {
  background: white;
  content: "";
  height: 100px;
  position: absolute;
  width: 200px;

}
.slider::after {
  
  transform: rotateZ(180deg);
}
.slider::before {
  left: 0;
  top: 0;
}
.slider .slide-track {
  animation: scroll 40s linear infinite;
  display: flex;
  width: 3000px;
}
.slider .slide {
  height: 50px;
  width: 200px;
}