Color Alternative Spin | Learning Axis

HTML

CSS

body {
  margin: 0px;
  height: 100%;
  overflow: hidden;
  font-family: "Google Sans", sans-serif;
  font-optical-sizing: auto;
  font-weight: 440;
  font-style: normal;
  font-variation-settings: "GRAD" 0;
}
body * {
  box-sizing: border-box;
  z-index: 2;
}
body:after {
  content: "";
  display: block;
  position: absolute;
  top: 0px;
  left: 0px;
  right: 0px;
  bottom: 0px;
  background: #111;
  background: repeating-linear-gradient(-45deg, #000, #000 5px, #111 5px, #111 10px);
  z-index: 0;
}
ul, li {
  margin: 0px;
  padding: 0px;
  list-style: none;
}
div {
  position: absolute;
  width: 300px;
  height: 200px;
  line-height: 400px;
  top: 52%;
  left: 51%;
  perspective: 400px;
  transform: translate(-50%, -50%) scale(0.9);
}
div:before, div:after {
  font-size: 80px;
  font-weight: bold;
  color: #eee;
  position: absolute;
  margin: 0px;
  padding: 0px;
  top: -170px;
  left: 0px;
  -webkit-box-reflect: below -341px linear-gradient(transparent, rgba(255, 255, 255, 0.06));
}
div:before {
  content: "c";
  text-indent: -5px;
}
div:after {
  content: "r";
  left: auto;
  right: 5px;
}
div ul {
  width: 0px;
  height: 150px;
  display: block;
  left: 50%;
  position: relative;
  transform-style: preserve-3d;
  transform-origin: center center;
  z-index: 3;
  animation: spin 11s linear infinite alternate-reverse;
}
div ul:before, div ul:after {
  content: "";
  display: block;
  position: absolute;
  width: 40px;
  height: 60px;
  border-radius: 20px;
  top: -10px;
  left: -20px;
  background: #fff;
}
div ul:before {
  background: #eee;
  transform: rotateY(-90deg);
}
div ul * {
  transform-style: preserve-3d;
}
div ul > li {
  display: block;
  width: 55px;
  height: 55px;
  border: solid 25px #fff;
  border-radius: 55px;
  top: -10px;
  left: 0px;
  position: absolute;
  transform: rotateY(calc(var(--i) * -90deg)) translateZ(0px) translateX(40px);
  transform-origin: top left;
  -webkit-box-reflect: below 2px linear-gradient(transparent, rgba(255, 255, 255, 0.1));
}
div ul > li:before, div ul > li:after {
  content: "";
  width: 50px;
  height: 50px;
  display: block;
  opacity: 0.75;
  border-radius: 40px;
  position: absolute;
  display: block;
  background: #ffd700;
  left: 50%;
  top: 50%;
  transform: translate3d(-50%, -50%, 1px);
  mix-blend-mode: color-burn;
}
div ul > li:before {
  transform: translate3d(-50%, -50%, -1px);
}
div ul > li:nth-child(1) {
  outline: solid 1px #ffd700;
  outline-offset: 1px;
}
div ul > li:nth-child(1):after {
  background: #ffd700;
}
div ul > li:nth-child(1):before {
  background: #ffe34d;
}
div ul > li:nth-child(2) {
  outline: solid 1px #20a7db;
  outline-offset: 1px;
}
div ul > li:nth-child(2):after {
  background: #20a7db;
}
div ul > li:nth-child(2):before {
  background: #60c2e8;
}
div ul > li:nth-child(3) {
  outline: solid 1px #8fce00;
  outline-offset: 1px;
}
div ul > li:nth-child(3):after {
  background: #8fce00;
}
div ul > li:nth-child(3):before {
  background: #b9ff1c;
}
div ul > li:nth-child(4) {
  outline: solid 1px #ff0000;
  outline-offset: 1px;
}
div ul > li:nth-child(4):after {
  background: #ff0000;
}
div ul > li:nth-child(4):before {
  background: #ff4d4d;
}
@keyframes spin {
  0% {
    transform: translateX(-50%) translateY(20px) rotateY(0deg) scale(1.05);
  }
  1% {
    transform: translateX(-50%) translateY(20px) rotateY(0deg) scale(1.05);
  }
  99% {
    transform: translateX(-50%) translateY(20px) rotateY(360deg) scale(1.05);
  }
  100% {
    transform: translateX(-50%) translateY(20px) rotateY(360deg) scale(1.05);
  }
}