body {
  background: #222;
  overflow: hidden;
}

.container {
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
  width: 920px;
  height: 590px;
  overflow: hidden;
}

.row {
  position: relative;
  margin-bottom: 6.5%;
  width: 120%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
}
.row:nth-of-type(odd) {
  left: -6.5%;
}

.circle {
  mix-blend-mode: screen;
  width: 5px;
  height: 5px;
  border-radius: 2.5px;
  -webkit-animation: pulsate 5s ease-in-out infinite alternate;
          animation: pulsate 5s ease-in-out infinite alternate;
}
.circle:nth-of-type(1) {
  background: #40bf80;
  -webkit-animation-delay: 0.5s;
          animation-delay: 0.5s;
}
.circle:nth-of-type(2) {
  background: #40bfbf;
  -webkit-animation-delay: 1s;
          animation-delay: 1s;
}
.circle:nth-of-type(3) {
  background: #4080bf;
  -webkit-animation-delay: 1.5s;
          animation-delay: 1.5s;
}
.circle:nth-of-type(4) {
  background: #4040bf;
  -webkit-animation-delay: 2s;
          animation-delay: 2s;
}
.circle:nth-of-type(5) {
  background: #8040bf;
  -webkit-animation-delay: 2.5s;
          animation-delay: 2.5s;
}
.circle:nth-of-type(6) {
  background: #bf40bf;
  -webkit-animation-delay: 3s;
          animation-delay: 3s;
}
.circle:nth-of-type(7) {
  background: #bf4080;
  -webkit-animation-delay: 3.5s;
          animation-delay: 3.5s;
}
.circle:nth-of-type(8) {
  background: #bf4040;
  -webkit-animation-delay: 4s;
          animation-delay: 4s;
}
.circle:nth-of-type(9) {
  background: #bf8040;
  -webkit-animation-delay: 4.5s;
          animation-delay: 4.5s;
}
.circle:nth-of-type(10) {
  background: #bfbf40;
  -webkit-animation-delay: 5s;
          animation-delay: 5s;
}

@-webkit-keyframes pulsate {
  0% {
    -webkit-transform: scale(1);
            transform: scale(1);
  }
  100% {
    -webkit-transform: scale(39);
            transform: scale(39);
  }
}

@keyframes pulsate {
  0% {
    -webkit-transform: scale(1);
            transform: scale(1);
  }
  100% {
    -webkit-transform: scale(39);
            transform: scale(39);
  }
}