@-webkit-keyframes scroll {
  0% {
    -webkit-transform: translateX(0);
            transform: translateX(0);
  }
  100% {
    -webkit-transform: translateX(calc(-250px * 9));
            transform: translateX(calc(-250px * 9));
  }
}

@keyframes scroll {
  0% {
    -webkit-transform: translateX(0);
            transform: translateX(0);
  }
  100% {
    -webkit-transform: translateX(calc(-250px * 9));
            transform: translateX(calc(-250px * 9));
  }
}
.slider {
  background: white;
  box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.125);
  height: 100px;
  margin: auto;
  overflow: hidden;
  position: relative;
  width: 960px;
}
.slider::before, .slider::after {
  background: linear-gradient(to right, white 0%, rgba(255, 255, 255, 0) 100%);
  content: "";
  height: 100px;
  position: absolute;
  width: 200px;
  z-index: 2;
}
.slider::after {
  right: 0;
  top: 0;
  -webkit-transform: rotateZ(180deg);
          transform: rotateZ(180deg);
}
.slider::before {
  left: 0;
  top: 0;
}
.slider .slide-track {
  -webkit-animation: scroll 50s linear infinite;
          animation: scroll 50s linear infinite;
  display: flex;
  width: calc(250px * 16);
}
.slider .slide {
  height: 100px;
  width: 250px;
}

clientes {
	align-items: center;
	background: #E3E3E3;
	display: flex;
	height: 100vh;
	justify-content: center;
}

@mixin white-gradient {
	background: linear-gradient(to right,  rgba(255,255,255,1) 0%,rgba(255,255,255,0) 100%);
}

$animationSpeed: 40s;

// Animation
@keyframes scroll {
	0% { transform: translateX(0); }
	100% { transform: translateX(calc(-250px * 9))}
}


// Styling
.slider {
	background: white;
	box-shadow: 0 10px 20px -5px rgba(0, 0, 0, .125);
	height: 100px;
	margin: auto;
	overflow:hidden;
	position: relative;
	width: 960px;
	
	&::before,
	&::after {
		@include white-gradient;
		content: "";
		height: 100px;
		position: absolute;
		width: 200px;
		z-index: 2;
	}
	
	&::after {
		right: 0;
		top: 0;
		transform: rotateZ(180deg);
	}

	&::before {
		left: 0;
		top: 0;
	}
	
	.slide-track {
		animation: scroll $animationSpeed linear infinite;
		display: flex;
		width: calc(250px * 16);
	}
	
	.slide {
		height: 100px;
		width: 250px;
	}
}