.dots {
  position: relative;
  width: 100%;
}

.dots span:nth-child(1) {
  animation-delay: 0.05s;
}

.dots span:nth-child(1):after {
  left: -20px;
}

.dots span:nth-child(2) {
  animation-delay: 0.1s;
}

.dots span:nth-child(2):after {
  left: -40px;
}

.dots span:nth-child(3) {
  animation-delay: 0.15s;
}

.dots span:nth-child(3):after {
  left: -60px;
}

.dots span:nth-child(4) {
  animation-delay: 0.2s;
}

.dots span:nth-child(4):after {
  left: -80px;
}

.dots span:nth-child(5) {
  animation-delay: 0.25s;
}

.dots span:nth-child(5):after {
  left: -100px;
}

.dots span {
  display: inline-block;
  position: absolute;
  animation-duration: 4s;
  animation-iteration-count: infinite;
}

.dots span:after {
  content: "";
  position: absolute;
  display: inline-block;
  background-color: #f0f0f0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.dots.animate span {
  animation-name: dots;
}

@keyframes dots {
  0%,20% {
    left: 0;
    animation-timing-function: ease-out;
    opacity: 0;
  }
  25% {
    opacity: 1;
  }
  35% {
    left: 45%;
    animation-timing-function: linear;
  }
  65% {
    left: 55%;
    animation-timing-function: ease-in;
  }
  75% {
    opacity: 1;
  }
  80%,100% {
    left: 100%;
    opacity: 0;
  }
}