@-webkit-keyframes scroll {
  0% {
    -webkit-transform: translateX(0);
            transform: translateX(0);
  }
  100% {
    -webkit-transform: translateX(calc(-250px * 35));
            transform: translateX(calc(-250px * 35));
  }
}

@keyframes scroll {
  0% {
    -webkit-transform: translateX(0);
            transform: translateX(0);
  }
  100% {
    -webkit-transform: translateX(calc(-250px * 35));
            transform: translateX(calc(-250px * 35));
  }
}
.slider-logo {
  background: white;
  box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.125);
  height: 150px;
  margin: auto;
  overflow: hidden;
  position: relative;
  width: 100%;
}
.slider-logo::before, .slider-logo::after {
  background: linear-gradient(to right, white 0%, rgba(255, 255, 255, 0) 100%);
  content: "";
  height: 150px;
  position: absolute;
  width: 200px;
  z-index: 2;
}
.slider-logo::after {
  right: 0;
  top: 0;
  -webkit-transform: rotateZ(180deg);
          transform: rotateZ(180deg);
}
.slider-logo::before {
  left: 0;
  top: 0;
}
.slider-logo .slide-track {
  -webkit-animation: scroll 35s linear infinite;
          animation: scroll 35s linear infinite;
  display: flex;
  width: calc(8500px);
}
.slider-logo .slide {
  height: 100px;
  width: auto;
  margin-left: 80px;
  margin-top: 25px
}