.loader-center {
  position: absolute;
  margin: auto;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  height: 48px;
}

.loader {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: block;
  margin: 15px auto;
  position: relative;
  box-sizing: border-box;
  animation: rotation 1s linear infinite;
}

.loader::after,
.loader::before {
  content: "";
  box-sizing: border-box;
  position: absolute;
  left: 0;
  top: 0;
  background: #0047ab;
  width: 16px;
  height: 16px;
  transform: translate(-50%, 50%);
  border-radius: 50%;
}

.loader::before {
  left: auto;
  right: 0;
  background: #ab0002;
  transform: translate(50%, 100%);
}

@keyframes rotation {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}