#arrows-container {
  position: relative;
  width: 200px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}

#arrows-container .arrows {
  width: 60px;
  height: 72px;
}

#arrows-container .arrows path {
  stroke: #4E73DF;
  fill: transparent;
  stroke-width: 1px;
  animation: arrow 2s infinite;
  -webkit-animation: arrow 2s infinite;
}

@keyframes arrow {
  0% {
    opacity: 0;
  }
  40% {
    opacity: 1;
  }
  80% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}
@-webkit-keyframes arrow /* Safari and Chrome*/ {
  0% {
    opacity: 0;
  }
  40% {
    opacity: 1;
  }
  80% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}
#arrows-container .arrows path.a1 {
  animation-delay: -1s;
  -webkit-animation-delay: -1s;
}

#arrows-container .arrows path.a2 {
  animation-delay: -0.5s;
  -webkit-animation-delay: -0.5s;
}

#arrows-container .arrows path.a3 {
  animation-delay: 0s;
  -webkit-animation-delay: 0s;
}