body {
  margin: 0;
  padding: 0;
  width: 100vw;
  height: 100vh;
  background-color: #FaFaFa;
}

.content {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
}

.loader {
  display: inline-block;
  position: relative;
  width: 30vw;
  height: 30vw;
}

.loader div {
  margin-top: 10vw;
  display: inline-block;
  position: absolute;
  width: 8vw;
  height: 8vw;
  border-radius: 100%;
  background: black;
  animation: upndown 2s ease-in-out 0s infinite, colorchange 2s ease-in-out 0s infinite;
}

.loader .loader-left {
  animation-delay: 0.5s;
}

.loader .loader-middle {
  margin-left: 11vw;
  animation-delay: 0.9s;
}

.loader .loader-right {
  margin-left: 22vw;
  animation-delay: 1.3s;
}

@keyframes upndown {
  0% {
    margin-top: 10vw;
  }
  15% {
    margin-top: 0vw;
  }
  30%, 100% {
    margin-top: 10vw;
  }
}

@keyframes colorchange {
  0% {
    background: black;
  }
  5%, 15%, 25% {
    background: #451BDA;
  }

  30%, 100% {
    background: black;
  }
}