奔跑吧，豚鼠！！！

<div aria-label="Orange and tan hamster running in a metal wheel" role="img" class="wheel-and-hamster">
      <div class="wheel"></div>
      <div class="hamster">
        <div class="hamster__body">
          <div class="hamster__head">
            <div class="hamster__ear"></div>
            <div class="hamster__eye"></div>
            <div class="hamster__nose"></div>
          </div>
          <div class="hamster__limb hamster__limb--fr"></div>
          <div class="hamster__limb hamster__limb--fl"></div>
          <div class="hamster__limb hamster__limb--br"></div>
          <div class="hamster__limb hamster__limb--bl"></div>
          <div class="hamster__tail"></div>
        </div>
      </div>
      <div class="spoke"></div>
    </div>

.wheel-and-hamster {
  --dur: 1s;
  position: relative;
  width: 12em;
  height: 12em;
  font-size: 14px;
}
.wheel,
.hamster,
.hamster div,
.spoke {
  position: absolute;
}
.wheel,
.spoke {
  border-radius: 50%;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.wheel {
  background: radial-gradient(100% 100% at center,hsla(0,0%,60%,0) 47.8%,hsl(0,0%,60%) 48%);
  z-index: 2;
}
.hamster {
  animation: hamster var(--dur) ease-in-out infinite;
  top: 50%;
  left: calc(50% - 3.5em);
  width: 7em;
  height: 3.75em;
  transform: rotate(4deg) translate(-0.8em,1.85em);
  transform-origin: 50% 0;
  z-index: 1;
}
.hamster__head {
  animation: hamsterHead var(--dur) ease-in-out infinite;
  background: hsl(30,90%,55%);
  border-radius: 70% 30% 0 100% / 40% 25% 25% 60%;
  box-shadow: 0 -0.25em 0 hsl(30,90%,80%) inset,
    0.75em -1.55em 0 hsl(30,90%,90%) inset;
  top: 0;
  left: -2em;
  width: 2.75em;
  height: 2.5em;
  transform-origin: 100% 50%;
}
.hamster__ear {
  animation: hamsterEar var(--dur) ease-in-out infinite;
  background: hsl(0,90%,85%);
  border-radius: 50%;
  box-shadow: -0.25em 0 hsl(30,90%,55%) inset;
  top: -0.25em;
  right: -0.25em;
  width: 0.75em;
  height: 0.75em;
  transform-origin: 50% 75%;
}
.hamster__eye {
  animation: hamsterEye var(--dur) linear infinite;
  background-color: hsl(0,0%,0%);
  border-radius: 50%;
  top: 0.375em;
  left: 1.25em;
  width: 0.5em;
  height: 0.5em;
}
.hamster__nose {
  background: hsl(0,90%,75%);
  border-radius: 35% 65% 85% 15% / 70% 50% 50% 30%;
  top: 0.75em;
  left: 0;
  width: 0.2em;
  height: 0.25em;
}
.hamster__body {
  animation: hamsterBody var(--dur) ease-in-out infinite;
  background: hsl(30,90%,90%);
  border-radius: 50% 30% 50% 30% / 15% 60% 40% 40%;
  box-shadow: 0.1em 0.75em 0 hsl(30,90%,55%) inset,
    0.15em -0.5em 0 hsl(30,90%,80%) inset;
  top: 0.25em;
  left: 2em;
  width: 4.5em;
  height: 3em;
  transform-origin: 17% 50%;
  transform-style: preserve-3d;
}
.hamster__limb--fr,
.hamster__limb--fl {
  clip-path: polygon(0 0,100% 0,70% 80%,60% 100%,0% 100%,40% 80%);
  top: 2em;
  left: 0.5em;
  width: 1em;
  height: 1.5em;
  transform-origin: 50% 0;
}
.hamster__limb--fr {
  animation: hamsterFRLimb var(--dur) linear infinite;
  background: linear-gradient(hsl(30,90%,80%) 80%,hsl(0,90%,75%) 80%);
  transform: rotate(15deg) translateZ(-1px);
}
.hamster__limb--fl {
  animation: hamsterFLLimb var(--dur) linear infinite;
  background: linear-gradient(hsl(30,90%,90%) 80%,hsl(0,90%,85%) 80%);
  transform: rotate(15deg);
}
.hamster__limb--br,
.hamster__limb--bl {
  border-radius: 0.75em 0.75em 0 0;
  clip-path: polygon(0 0,100% 0,100% 30%,70% 90%,70% 100%,30% 100%,40% 90%,0% 30%);
  top: 1em;
  left: 2.8em;
  width: 1.5em;
  height: 2.5em;
  transform-origin: 50% 30%;
}
.hamster__limb--br {
  animation: hamsterBRLimb var(--dur) linear infinite;
  background: linear-gradient(hsl(30,90%,80%) 90%,hsl(0,90%,75%) 90%);
  transform: rotate(-25deg) translateZ(-1px);
}
.hamster__limb--bl {
  animation: hamsterBLLimb var(--dur) linear infinite;
  background: linear-gradient(hsl(30,90%,90%) 90%,hsl(0,90%,85%) 90%);
  transform: rotate(-25deg);
}
.hamster__tail {
  animation: hamsterTail var(--dur) linear infinite;
  background: hsl(0,90%,85%);
  border-radius: 0.25em 50% 50% 0.25em;
  box-shadow: 0 -0.2em 0 hsl(0,90%,75%) inset;
  top: 1.5em;
  right: -0.5em;
  width: 1em;
  height: 0.5em;
  transform: rotate(30deg) translateZ(-1px);
  transform-origin: 0.25em 0.25em;
}
.spoke {
  animation: spoke var(--dur) linear infinite;
  background: radial-gradient(100% 100% at center,hsl(0,0%,60%) 4.8%,hsla(0,0%,60%,0) 5%),
    linear-gradient(hsla(0,0%,55%,0) 46.9%,hsl(0,0%,65%) 47% 52.9%,hsla(0,0%,65%,0) 53%) 50% 50% / 99% 99% no-repeat;
}
/* Animations */
@keyframes hamster {
  from, to {
    transform: rotate(4deg) translate(-0.8em,1.85em);
  }
  50% {
    transform: rotate(0) translate(-0.8em,1.85em);
  }
}
@keyframes hamsterHead {
  from, 25%, 50%, 75%, to {
    transform: rotate(0);
  }
  12.5%, 37.5%, 62.5%, 87.5% {
    transform: rotate(8deg);
  }
}
@keyframes hamsterEye {
  from, 90%, to {
    transform: scaleY(1);
  }
  95% {
    transform: scaleY(0);
  }
}
@keyframes hamsterEar {
  from, 25%, 50%, 75%, to {
    transform: rotate(0);
  }
  12.5%, 37.5%, 62.5%, 87.5% {
    transform: rotate(12deg);
  }
}
@keyframes hamsterBody {
  from, 25%, 50%, 75%, to {
    transform: rotate(0);
  }
  12.5%, 37.5%, 62.5%, 87.5% {
    transform: rotate(-2deg);
  }
}
@keyframes hamsterFRLimb {
  from, 25%, 50%, 75%, to {
    transform: rotate(50deg) translateZ(-1px);
  }
  12.5%, 37.5%, 62.5%, 87.5% {
    transform: rotate(-30deg) translateZ(-1px);
  }
}
@keyframes hamsterFLLimb {
  from, 25%, 50%, 75%, to {
    transform: rotate(-30deg);
  }
  12.5%, 37.5%, 62.5%, 87.5% {
    transform: rotate(50deg);
  }
}
@keyframes hamsterBRLimb {
  from, 25%, 50%, 75%, to {
    transform: rotate(-60deg) translateZ(-1px);
  }
  12.5%, 37.5%, 62.5%, 87.5% {
    transform: rotate(20deg) translateZ(-1px);
  }
}
@keyframes hamsterBLLimb {
  from, 25%, 50%, 75%, to {
    transform: rotate(20deg);
  }
  12.5%, 37.5%, 62.5%, 87.5% {
    transform: rotate(-60deg);
  }
}
@keyframes hamsterTail {
  from, 25%, 50%, 75%, to {
    transform: rotate(30deg) translateZ(-1px);
  }
  12.5%, 37.5%, 62.5%, 87.5% {
    transform: rotate(10deg) translateZ(-1px);
  }
}
@keyframes spoke {
  from {
    transform: rotate(0);
  }
  to {
    transform: rotate(-1turn);
  }
}