dcat-admin2/resources/dist/css/plugins/loaders/animations/ball-beat.css

/*========================================================
        DARK LAYOUT
=========================================================*/

@-webkit-keyframes ball-beat {
  50% {
    opacity: 0.2;
    transform: scale(0.75);
  }

  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes ball-beat {
  50% {
    opacity: 0.2;
    transform: scale(0.75);
  }

  100% {
    opacity: 1;
    transform: scale(1);
  }
}

.ball-beat > div {
  background-color: #b8c2cc;
  width: 15px;
  height: 15px;
  border-radius: 100%;
  margin: 2px;
  -webkit-animation-fill-mode: both;
          animation-fill-mode: both;
  display: inline-block;
  -webkit-animation: ball-beat 0.7s 0s infinite linear;
          animation: ball-beat 0.7s 0s infinite linear;
}

.ball-beat > div:nth-child(2n-1) {
  -webkit-animation-delay: -0.35s !important;
          animation-delay: -0.35s !important;
}