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HTML 

              
                <div class="canvas" role="img" aria-label="Cartoon of Santa Claus on top of a snowy hill">
  <div class="hand"></div>
  <div class="hand"></div>
  <div class="arms"></div>
  <div class="leg"></div>
  <div class="leg"></div>
  <div class="body">
    <div class="belt"></div>
  </div>
  <div class="beard"></div>
  <div class="head">
    <div class="cheek"></div>
    <div class="cheek"></div>
    <div class="eye"></div>
    <div class="eye"></div>
    <div class="mustache"></div>
    <div class="mustache"></div>
    <div class="hat"></div>
  </div>
</div>
!

CSS 

              
                @keyframes snow {
  0% { background-position: 0 0, 0 0, 0 0, 0 0; }
  40% { background-position: 10px 14vmin, -20px 28vmin, 20px 20vmin, 10px 24vmin; }
  60% { background-position: -10px 21vmin, -30px 42vmin, 30px 30vmin, 15px 36vmin; }
  100% { background-position: 0 35vmin, 0 70vmin, 0 50vmin, 0 60vmin; }
}

@keyframes blink {
  0%, 6%, 100% { height: 12%; }
  3% { height: 0%; }
}

@keyframes moveMustache {
  0%, 40%, 44%, 100% { transform: translate(-100%, 0) rotate(25deg); }
  42% { transform: translate(-100%, 0) rotate(30deg); }
}

@keyframes moveMustache2 {
  0%, 40%, 44%, 100% { transform: rotate(-25deg); }
  42% { transform: rotate(-30deg); }
}

@media (prefers-reduced-motion) {
  * {
    animation: none !important;
  }
}

html {
  background: #abc;
  overflow: hidden;
  background-image:
    radial-gradient(circle at 50% 50%, white 2.5%, transparent 0),
    radial-gradient(circle at 30% 90%, white 1.5%, transparent 0),
    radial-gradient(circle at 70% 10%, white 1%, transparent 0),
    radial-gradient(circle at 10% 40%, white 1%, transparent 0);
  background-size: 45vmin 35vmin, 50vmin 70vmin, 60vmin 50vmin, 65vmin 60vmin;
  background-position: 0 0;
  animation: snow infinite 7s linear;
}

.canvas {
  --skin: #fca;
  --eyes: #630a;
  --cheeks: #f001;
  --beard: #eee;
  --mustache: #fff;
  --suit: #a00;
  --belt: #222;
  --belt-buckle: gold;
  width: 60vmin;
  aspect-ratio: 1;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.canvas::before {
  content: "";
  display: block;
  position: absolute;
  top: 90%;
  left: 50%;
  width: 200vmax;
  height: 200vmax;
  background: white;
  transform: translate(-50%, 0) rotate(1deg);
  border-radius: 100% / 20%;
}


.head {
  --positionX: 27%;
  --positionY: 63%;
  position: absolute;
  top: 10%;
  left: 50%;
  border-radius: 50%;
  width: 25%;
  height: 25%;
  transform: translate(-50%, 0);
  background: var(--skin);
}

.eye {
  position: absolute;
  top: var(--positionY);
  left: var(--positionX);
  width: 12%;
  height: 12%;
  background: var(--eyes);
  border-radius: 50%;
  animation: blink 5s infinite linear;
}

.eye + .eye {
  left: auto;
  right: var(--positionX);
}

.cheek {
  position: absolute;
  top: calc(var(--positionY) + 7%);
  left: calc(var(--positionX) - 12%);
  width: 20%;
  height: 12%;
  background: var(--cheeks);
  border-radius: 50%;
}

.cheek + .cheek {
  left: auto;
  right: calc(var(--positionX) - 12%);
}

.beard {
  position: absolute;
  top: 10%;
  left: 50%;
  width: 30%;
  height: 40%;
  background: var(--beard);
  transform: translate(-50%, 0);
  border-radius: 100% / 120% 120% 80% 80%;
}

.mustache {
  position: absolute;
  top: 88%;
  left: 52%;
  width: 40%;
  height: 40%;
  background: var(--mustache);
  border-radius: 100% 10% 100% 0;
  transform-origin: top right;
  transform: translate(-100%, 0) rotate(25deg);
  animation: moveMustache 7s infinite linear;
}

.mustache + .mustache {
  left: 48%;
  border-radius: 10% 100% 0 100%;
  transform-origin: top left;
  transform: rotate(-25deg);
  animation: moveMustache2 7s infinite linear;
}

.hat {
  position: absolute;
  width: 98%;
  height: 80%;
  background: var(--suit);
  border-radius: 100% 20% 0 0;
  top: -40%;
  left: 50%;
  transform: translate(-50%, 0) rotate(1deg);
}

.hat::before {
  content: "";
  display: block;
  position: absolute;
  bottom: -17%;
  left: -5%;
  width: 110%;
  height: 40%;
  border-radius: 100% / 50%;
  transform: rotate(-2deg);
  background: radial-gradient(200% 100% at 50% 100%, #0000 30%, var(--mustache) 31%);
}

.hat::after {
  content: "";
  display: block;
  position: absolute;
  right: -25%;
  top: -15%;
  width: 40%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--beard);
}

.body {
  position: absolute;
  top: 35%;
  left: 50%;
  width: 50%;
  height: 50%;
  background: var(--suit);
  border-radius: 100% / 150% 150% 25% 25%;
  transform: translate(-50%, 0);
  background-image:
    /* buttons */
    radial-gradient(circle at 50% 36%, var(--belt) 2.75%, #0000 3%),
    radial-gradient(circle at 50% 48%, var(--belt) 3%, #0000 3.25%),
    radial-gradient(circle at 50% 60%, var(--belt) 2.75%, #0000 3%),
    radial-gradient(circle at 50% 90%, var(--belt) 2.25%, #0000 2.5%),
    /* belt */
    radial-gradient(circle at 50% -50%, transparent 75%, var(--belt) 75.1% 83%, transparent 83.1%),
    /* flap */
    linear-gradient(to right, transparent 42%, white 42.2% 57%, transparent 57.2%);
  clip-path: polygon(0% 0%, 100% 0%, 100% 100%, 51% 100%, 50% 96%, 49% 100%, 0% 100%);
}

.belt {
  position: absolute;
  top: 75%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 23%;
  height: 15%;
  background: 
    linear-gradient(var(--belt-buckle) 0 0) 75% 50% / 25% 12% no-repeat,
    linear-gradient(var(--belt) 0 0) 50% 50% / 85% 80% no-repeat,
    var(--belt-buckle);
}


.arms {
  position: absolute;
  top: 37%;
  left: 50%;
  transform: translate(-50%, 0);
  width: 65%;
  height: 40%;
  background: #a00;
  border-radius: 100% / 170% 170% 25% 25%;
  background-image: linear-gradient(transparent 20%, #0003);
}

.hand {
  --positionX: 18%;
  position: absolute;
  top: 70%;
  left: var(--positionX);
  width: 13%;
  height: 13%;
  background: var(--belt);
  border-radius: 50%;
}

.hand + .hand {
  left: auto;
  right: var(--positionX);
}

.leg {
  position: absolute;
  top: 75%;
  left: 29%;
  width: 19%;
  height: 25%;
  background: var(--suit);
  transform: skew(2deg);
  background-image: linear-gradient(#0002, transparent 70%, var(--belt) 0);
}

.leg + .leg {
  left: 52%;
}

.leg::after {
  content: "";
  display: block;
  position: absolute;
  bottom: 0;
  left: -6%;
  width: 110%;
  height: 20%;
  background: black;
  border-radius: 50% / 100% 100% 0 0;
}

.leg + .leg::after {
  left: -4%;
}
!

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