.loader {
  animation: rotate 1s infinite;
  height: 50px;
  width: 50px;
  position: absolute;
  left: calc(50% - 0.7em);
}

.loader:before,
.loader:after {
  border-radius: 50%;
  content: "";
  display: block;
  height: 20px;
  width: 20px;
}
.loader:before {
  animation: ball1 1s infinite;
  background-color: #cb2025;
  box-shadow: 30px 0 0 #f8b334;
  margin-bottom: 10px;
}
.loader:after {
  animation: ball2 1s infinite;
  background-color: #00a096;
  box-shadow: 30px 0 0 #97bf0d;
}

@keyframes rotate {
  0% {
    -webkit-transform: rotate(0deg) scale(0.8);
    -moz-transform: rotate(0deg) scale(0.8);
  }
  50% {
    -webkit-transform: rotate(360deg) scale(1.2);
    -moz-transform: rotate(360deg) scale(1.2);
  }
  100% {
    -webkit-transform: rotate(720deg) scale(0.8);
    -moz-transform: rotate(720deg) scale(0.8);
  }
}

@keyframes ball1 {
  0% {
    box-shadow: 30px 0 0 #f8b334;
  }
  50% {
    box-shadow: 0 0 0 #f8b334;
    margin-bottom: 0;
    -webkit-transform: translate(15px, 15px);
    -moz-transform: translate(15px, 15px);
  }
  100% {
    box-shadow: 30px 0 0 #f8b334;
    margin-bottom: 10px;
  }
}

@keyframes ball2 {
  0% {
    box-shadow: 30px 0 0 #97bf0d;
  }
  50% {
    box-shadow: 0 0 0 #97bf0d;
    margin-top: -20px;
    -webkit-transform: translate(15px, 15px);
    -moz-transform: translate(15px, 15px);
  }
  100% {
    box-shadow: 30px 0 0 #97bf0d;
    margin-top: 0;
  }
}