Rings Animation | Learning Axis

HTML

CSS

* {
  box-sizing: border-box;
}
:root {
  --clr-bg: #011920;
  --clr-1: yellow;
  --clr-2: blue;
  --clr-3: rgb(175, 208, 84);
}
@property --angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}
body {
  min-height: 100svh;
  background-color: var(--clr-bg);
  display: grid;
  place-content: center;
  perspective: 1000px;
  background-image: radial-gradient(
    circle,
    rgba(175, 208, 84, 0.25) 1px,
    rgba(0, 0, 0, 0) 1px
    );
  background-size: 40px 40px;
  background-attachment: fixed;
}
.wrapper {
  position: relative;
  width: 200px;
  height: 200px;
  display: grid;
}
.wrapper > .ring {
  --speed-neon: 2000ms;
  --speed-rotation: 10000ms;
  --scale: calc(1 - (var(--i) * 0.1));
  --rotate-z: 180deg;
  --rotate-x: 360deg;
  --rotate-y: calc(var(--i) * 5deg);
  --translate-z: calc(var(--i) * -55px);
  width: 100%;
  height: 100%;
  grid-area: 1/1;
  border: 30px solid transparent;
  border-radius: 50%;
  filter: blur(1px);
  background: linear-gradient(var(--clr-bg) 0 0) padding-box,
    conic-gradient(
      from var(--angle),
      var(--clr-2),
      var(--clr-1),
      var(--clr-3),
      var(--clr-2)
      )
    border-box;
  animation-name: neon-rotate, rotate;
  animation-duration: var(--speed-neon), var(--speed-rotation);
  animation-direction: normal, alternate;
  animation-timing-function: linear, ease-in-out;
  animation-iteration-count: infinite;
  mask: linear-gradient(red, red),
    radial-gradient(circle, red 73px, #0000 0) center no-repeat;
  mask-composite: exclude;
}
@keyframes neon-rotate {
  from {
    --angle: 0deg;
  }
  to {
    --angle: 360deg;
  }
}
@keyframes rotate {
  from {
    transform: rotateZ(0deg) rotateY(0deg) rotateX(0deg) translateZ(0px)
      scale(0.5);
  }
  to {
    transform: rotateZ(var(--rotate-z)) rotateY(var(--rotate-y))
      rotateX(var(--rotate-x)) translateZ(var(--translate-z)) scale(var(--scale));
  }
}