.root-boxes {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  height: 97vh;
}

.boxes {
  margin: auto;
  width: 250px;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.boxes .box {
  margin: 16.66667px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(130deg, #1890FF 0%, #1890FF 100%);
  box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.3);
  -webkit-animation: pulse 1s linear infinite alternate;
  animation: pulse 1s linear infinite alternate;
}

.boxes .box:nth-child(1) {
  -webkit-animation-delay: 0.1s;
  animation-delay: 0.1s;
}

.boxes .box:nth-child(2) {
  -webkit-animation-delay: 0.1s;
  animation-delay: 0.1s;
}

.boxes .box:nth-child(3) {
  -webkit-animation-delay: 0.2s;
  animation-delay: 0.2s;
}

.boxes .box:nth-child(4) {
  -webkit-animation-delay: 0.3s;
  animation-delay: 0.3s;
}

.boxes .box:nth-child(5) {
  -webkit-animation-delay: 0.4s;
  animation-delay: 0.4s;
}

.boxes .box:nth-child(6) {
  -webkit-animation-delay: 0.5s;
  animation-delay: 0.5s;
}

.boxes .box:nth-child(7) {
  -webkit-animation-delay: 0.6s;
  animation-delay: 0.6s;
}

.boxes .box:nth-child(8) {
  -webkit-animation-delay: 0.7s;
  animation-delay: 0.7s;
}

.boxes .box:nth-child(9) {
  -webkit-animation-delay: 0.8s;
  animation-delay: 0.8s;
}

@-webkit-keyframes pulse {
  from, 
  40% {
    opacity: 0;
  }
  50% {
    opacity: 0.5;
  }
  80%,
  to {
    opacity: 1;
  }
}

@keyframes pulse {
  from, 
  40% {
    opacity: 0;
  }
  50% {
    opacity: 0.5;
  }
  80%,
  to {
    opacity: 1;
  }
}

@media screen and (max-width: 300px) {
  .box {
    width: 30px !important;
    height: 30px !important;
  }
}