* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: #717a7d;
}

@keyframes slide {
  from {
    transform: translateX();
  }
  to {
    transform: translateX(-100%);
  }
}

.logos {
  overflow: hidden;
  padding: 10px 0;
  white-space: nowrap;
  position: relative;
}

.logos:before,
.logos:after {
  position: absolute;
  top: 0;
  width: 250px;
  height: 100%;
  content: "";
  z-index: 2;
}

.logos:before {
  left: 0;
  background: linear-gradient(to left, rgba(255, 255, 255, 0), white);
}

.logos:hover .logos-slide {
    animation-play-state: paused;
}

.logos-slide {
    display: inline-block;
    animation: 47s slide infinite linear;
}

.logos-slide img {
  height: 40px;
  margin: 0 20px;
}