.loader,
.loader:after {
  border-radius: 50%;
  width: 5em;
  height: 5em;
}

.loader {
  margin: 60px auto;
  font-size: 10px;
  position: relative;
  text-indent: -9999em;
  border-top: 0.5em solid rgba(0, 217, 255, 0.2);
  border-right: 0.5em solid rgba(0, 217, 255, 0.2);
  border-bottom: 0.5em solid rgba(0, 217, 255, 0.2);
  border-left: 0.5em solid #00d9ff;
  -webkit-transform: translateZ(0);
  -ms-transform: translateZ(0);
  transform: translateZ(0);
  -webkit-animation: load8 1.1s infinite linear;
  animation: load8 1.1s infinite linear;
}

@-webkit-keyframes load8 {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}

@keyframes load8 {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}

:root {
  --yellow: #feb60a;
  --red: #ff0062;
  --blue: #00dbf9;
  --violet: #da00f7;
}

body {
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-color: #1a1940;
  background-image: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.15) 0%,
    rgba(0, 153, 212, 0) calc(15% + 100px),
    rgba(0, 99, 138, 0) calc(85% + 100px),
    rgba(0, 0, 0, 0.15) 100%
  );
}

div.container {
  display: flex;
  justify-content: center;
  align-items: center;
}

div > div {
  width: 3vw;
  height: 3vw;
  border-radius: 100%;
  margin: 2vw;
  background-image: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.5) 0%,
    rgba(0, 0, 0, 0) 100%
  );
  animation: bounce 1.5s 0.5s linear infinite;
}

.yellow {
  background-color: var(--yellow);
}

.red {
  background-color: var(--red);
  animation-delay: 0.1s;
}

.blue {
  background-color: var(--blue);
  animation-delay: 0.2s;
}

.violet {
  background-color: var(--violet);
  animation-delay: 0.3s;
}

@keyframes bounce {
  0%,
  50%,
  100% {
    transform: scale(1);
    filter: blur(0px);
  }
  25% {
    transform: scale(0.6);
    filter: blur(3px);
  }
  75% {
    filter: blur(3px);
    transform: scale(1.4);
  }
}