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HTML

              
                <div class="hair"></div>
<div class="neck"></div>
<div class="face">
  <div class="inside-head">
    <div class="heart"></div>
    <div class="heart side-1"></div>
    <div class="heart side-2"></div>
    <div class="heart nose"></div>
    <div class="dots"></div>
    <div class="lines"></div>
    <div class="lines"></div>
    <div class="lines"></div>
    <div class="lines"></div>
    <div class="lip-bottom"></div>
    <div class="lip-top"></div>
    <div class="stitches"></div>
  </div>
</div>
<div class="marigold"></div>
<div class="hat"></div>
<div class="skull"></div>
<div class="hide-top"></div>
<div class="candles"></div>
<div class="flames"></div>
<div class="pendant"></div>
<div class="hair-1"></div>
<div class="hair-1"></div>

<a id="youtube" href="https://www.youtube.com/watch?v=9ZMiTIHCqoM" target="_blank">
  <span>See how this video was made</span>
</a>

              
            
!

CSS

              
                html, body {
  --bg: #436;
  --red: #a11;
  --white: #eee;
  --black: #222;
  --pink: #b66;
  --yellow: #fc3;
  margin: 0;
  padding: 0;
  border: 0;
  overflow: hidden;
  background: var(--bg);
}

div, div::before, div::after {
  display: block;
  position: absolute;
  box-sizing: border-box;
}

.hide-top {
  width: 100vw;
  height: 100vh;
  bottom: 37vw;
  left: 0;
  background: var(--bg);
}

.hat {
  width: 100vw;
  height: 6vw;
  bottom: 31vw;
  background-image:
    radial-gradient(circle at 3.5vw 2.2vw, var(--pink) 0.5vw, var(--red) 0 0.75vw, transparent 0),
    radial-gradient(at 3.5vw 3.5vw, var(--pink) 0.2vw, transparent 0),
    linear-gradient(var(--red) 1.25vw, transparent 0),
    linear-gradient(30deg, transparent 48%, var(--pink) 0 52%, transparent 0),
    linear-gradient(-30deg, transparent 48%, var(--pink) 0 52%, transparent 0),
    radial-gradient(circle at 3.5vw 1.5vw, var(--red) 3.5vw, transparent 0)
    ;
  background-size:
    7vw 6vw,
    7vw 14vw,
    7vw 6vw,
    7vw 6vw,
    7vw 6vw,
    7vw 6vw;
  background-position:
    1vw 0,
    1vw 0,
    1vw 0,
    1vw -1vw,
    1vw -1vw,
    1vw 0;
  background-repeat: repeat-x;
}

.skull {
  width: 0.6vw;
  height: 0.5vw;
  border-radius: 50%;
  background: var(--black);
  color: var(--black);
  bottom: 31.25vw;
  left: 0.125vw;
  box-shadow: 
    1vw 0, 0.5vw -0.25vw 0 0.75vw var(--white),
    7vw 0, 8vw 0, 7.5vw -0.25vw 0 0.75vw var(--yellow),
    14vw 0, 15vw 0, 14.5vw -0.25vw 0 0.75vw var(--white),
    21vw 0, 22vw 0, 21.5vw -0.25vw 0 0.75vw var(--yellow),
    28vw 0, 29vw 0, 28.5vw -0.25vw 0 0.75vw var(--white),
    70vw 0, 71vw 0, 70.5vw -0.25vw 0 0.75vw var(--white),
    77vw 0, 78vw 0, 77.5vw -0.25vw 0 0.75vw var(--yellow),
    84vw 0, 85vw 0, 84.5vw -0.25vw 0 0.75vw var(--white),
    91vw 0, 92vw 0, 91.5vw -0.25vw 0 0.75vw var(--yellow),
    98vw 0, 99vw 0, 98.5vw -0.25vw 0 0.75vw var(--white);
}

.skull::after {
  content: "";
  width: 250%;
  height: 150%;
  background: var(--white);
  color: var(--white);
  top: 100%;
  box-shadow: 
    0 0.2vw var(--black), 0 0.4vw,
    7vw 0 var(--yellow), 7vw 0.2vw var(--black), 7vw 0.4vw var(--yellow),
    14vw 0, 14vw 0.2vw var(--black), 14vw 0.4vw,
    21vw 0 var(--yellow), 21vw 0.2vw var(--black), 21vw 0.4vw var(--yellow),
    28vw 0, 28vw 0.2vw var(--black), 28vw 0.4vw,
    70vw 0, 70vw 0.2vw var(--black), 70vw 0.4vw,
    77vw 0 var(--yellow), 77vw 0.2vw var(--black), 77vw 0.4vw var(--yellow),
    84vw 0, 84vw 0.2vw var(--black), 84vw 0.4vw,
    91vw 0 var(--yellow), 91vw 0.2vw var(--black), 91vw 0.4vw var(--yellow),
    98vw 0, 98vw 0.2vw var(--black), 98vw 0.4vw;
}

.face {
  width: 40vw;
  height: 40vw;
  background: var(--white);
  background: linear-gradient(135deg, transparent 60%, var(--white) 0);
  border-radius: 25% / 10%;
  transform: translate(-50%, 0) rotate(45deg);
  left: 50%;
  bottom: 21vw;
  overflow: hidden;
  box-shadow: 0 -1vw 3vw var(--black)
}

.face::before {
  content: "";
  width: 250%;
  height: 100%;
  background: var(--black);
  border-radius: 100%;
  transform: rotate(-45deg) translate(-50%, -75%);
  box-shadow: 59vw 1.5vw var(--black);
}

.hair {
  width: 50vw;
  height: 35vw;
  background: var(--black);
  color: var(--black);
  border-radius: 90% 80% 100% 100%;
  left: 50%;
  transform: translate(-50%, 0);
  bottom: 14vw;
  box-shadow: 0 37vw 0 3vw;
}

.marigold {
  width: 5vw;
  height: 4.5vw;
  background: var(--yellow);
  color: var(--yellow);
  border-radius: 50%;
  left: 24vw;
  bottom: 30vw;
  box-shadow: 
    3vw 3vw, 1.5vw 1vw 0 0.15vw, 6vw 0, 5.5vw 2.25vw 0 -0.5vw, 3vw -2vw 0 2vw,
    
    40vw 0, 43vw 3vw, 41.5vw 1vw 0 0.15vw, 46vw 0, 45.5vw 2.25vw 0 -0.5vw, 43vw -2vw 0 2vw
}

.neck,
.neck::before {
  width: 20vw;
  height: 20vw;
  bottom: 5vw;
  left: 48.5%;
  transform: translate(-100%, 0);
  border-radius: 100% / 70%;
  box-shadow: 1.5vw 0 var(--white), 6vw 9vw 0 -3vw var(--white), 10.5vw 17.25vw 0 -2vw var(--white), 0 19vw var(--red);
}

.neck::before {
  content: "";
  bottom: 0;
  left: 23vw;
  transform: none;
  box-shadow: -1.65vw 0 var(--white), -6vw 9vw 0 -3vw var(--white), 0 19vw var(--red);
}

.pendant {
  width: 10vw;
  height: 10vw;
  border-radius: 50%;
  border: 1vw solid transparent;
  border-bottom-color: var(--black);
  left: 50%;
  bottom: 7vw;
  transform: translate(-50%, 0);
}

.pendant::before {
  content: "";
  width: 20%;
  height: 30%;
  background: var(--yellow);
  bottom: -1vw;
  left: 50%;
  transform: translate(-50%, 100%);
  border-radius: 100% / 125% 125% 70% 70%;
}

.candles {
  width: 100vw;
  height: 20vw;
  background: #f007;
  bottom: 37vw;
  background: repeating-linear-gradient(to right, var(--white), var(--white) 2.25%, transparent 2.25% 4%);
  background-position: -1vw 0;
  clip-path: polygon(0% 0%, 3% 0%, 10% 5%, 10% 7%, 14% 5%, 14% 0%, 18% 0%, 18% 13%, 21% 14%, 25.5% 17%, 25% 100%, 26% 100%, 26% 17%, 30% 10%, 35% 10%, 39% 14%, 44% 7%, 47% 7%, 47% 5%, 51% 5%, 57% 0%, 58% 3%, 58% 15%, 62% 15%, 65% 10%, 70% 10%, 75% 20%, 78% 10%, 82% 10%, 82% 16%, 86% 14%, 86% 3%, 90% 8%, 93% 8%, 97% 0%, 100% 2%, 100% 100%, 0% 100%)
}

.flames {
  width: 2.5vw;
  height: 4vw;
  background: var(--yellow);
  color: var(--yellow);
  border-radius: 100% / 125% 125% 70% 70%;
  bottom: 57.75vw;
  left: -0.5vw;
  box-shadow: 3.5vw 0.25vw, 7.6vw 1vw 0 -0.25vw,
    11.25vw 1.5vw 0 -0.5vw, 15.5vw 0 0 0.125vw, 19.5vw 3.25vw, 19.5vw 2.75vw, 23.5vw 4.25vw 0 -0.25vw, 27.75vw 3vw, 31.4vw 2.3vw 0 0.12vw, 35.5vw 2.85vw 0 -0.5vw, 39.5vw 3.5vw 0 -0.6vw, 43.5vw 2vw, 47.5vw 1.5vw 0 -0.2vw, 51vw 1.25vw 0 -0.1vw, 55vw 0.5vw 0 -0.2vw, 59.5vw 3.5vw, 63.5vw 2.125vw 0 -0.5vw, 63.5vw 3vw 0 -0.5vw, 67.5vw 2.25vw 0 0.125vw, 71.5vw 3.5vw, 75.6vw 3.85vw 0 -0.25vw, 79vw 2.5vw, 83.5vw 3.4vw 0 -0.24vw, 87.5vw 1.5vw, 91vw 2.5vw 0 -0.3vw, 95.25vw 0.5vw, 99vw 0, 99vw -1vw
}

.hair-1 {
  width: 20vw;
  height: 25vw;
  left: 80vw;
  bottom: -12.5vw;
  border-radius: 100%;
  box-shadow: inset -1.25vw 1vw 0 2vw var(--black),
    inset -2vw 0 0 5vw var(--bg),
    inset -3vw 0 0 5.5vw var(--black)
}

.hair-1 + .hair-1 {
  left: -2vw;
  bottom: -14vw;
  transform: scaleX(-1) rotate(-20deg)
}

.inside-head {
  width: 100%;
  height: 100%;
  transform: rotate(-45deg);
  top: 15%;
  left: 15%;
}

.heart {
  width: 3%;
  height: 3%;
  left: 50%;
  top: 56%;
  background: var(--red);
  transform: translate(-50%, 0) rotate(-45deg);
}

.heart::before,
.heart::after {
  content: "";
  width: 100%;
  height: 100%;
  border-radius: 50%;
  top: -50%;
  background: var(--red);
}

.heart::after {
  top: 0;
  right: -50%;
}

.heart.side-1 {
  left: 52.5%;
  top: 70%;
  transform: rotate(90deg) skew(-40deg);
}

.heart.side-2 {
  top: 70%;
  left: 44.5%;
  transform: rotate(150deg) skew(-40deg);
}

.heart.nose {
  top: 74%;
  transform: translate(-50%, 0) rotate(135deg) scale(1.25) skew(5deg);
  background: var(--black);
}

.heart.nose::before,
.heart.nose::after {
  background: var(--black);
}

.dots {
  width: 1.5%;
  height: 1.5%;
  border-radius: 50%;
  background: var(--black);
  top: 80%;
  left: 38.5%;
  box-shadow: 8.5vw 0, 4.25vw -3.75vw, 4.25vw -4.75vw,
    4.25vw -5.75vw 0 -0.125vw, 4.25vw -6.5vw 0 -0.125vw, 4.25vw -7.125vw 0 -0.125vw, 4.25vw -7.75vw 0 -0.15vw, 4.25vw -8.25vw 0 -0.15vw
}

.lines {
  width: 9%;
  height: 13%;
  border-radius: 50%;
  border: 0.5vw solid var(--yellow);
  top: 75%;
  left: 27%;
  border-left-color: transparent;
  transform: rotate(60deg);
}

.lines::before,
.lines::after {
  content: "";
  width: 80%;
  height: 50%;
  border: 0.5vw solid var(--yellow);
  border-radius: 50%;
  border-right: 0.125vw solid transparent;
  border-top-color: transparent;
  top: -0.5vw;
}

.lines::after {
   border: 0.5vw solid var(--yellow);
  border-left: 0.125vw solid transparent;
  border-bottom-color: transparent;
  top: 3.25vw;
  left: -1.5vw;
  transform: rotate(-45deg)
}

.lines + .lines {
  left: auto;
  right: 27%;
  transform: scaleX(-1) rotate(60deg);
}

.lines + .lines + .lines {
  left: auto;
  right: 22%;
  top: 66%;
  transform: rotate(50deg) scale(0.8);
}

.lines + .lines + .lines + .lines {
  left: 22%;
  transform: scaleX(-1) rotate(50deg) scale(0.8);
}

.lip-bottom {
  width: 14.5%;
  height: 4%;
  background: var(--red);
  left: 50%;
  top: 80%;
  transform: translate(-50%, 0);
  border-radius: 50%;
  clip-path: polygon(0% 50%, 100% 50%, 100% 100%, 0% 100%);
}

.lip-top {
  width: 7%;
  height: 3.5%;
  background: var(--red);
  left: 50%;
  top: 80.5%;
  transform: translate(-95%, 0);
  border-radius: 100% 50%;
  clip-path: polygon(0% 0%, 200% 0%, 200% 50%, 0% 50%);
}

.lip-top::before {
  content: "";
  width: 100%;
  height: 100%;
  background: var(--red);
  border-radius: 50% 100%;
  transform: translate(95%, 0);
}

.stitches {
  width: 0.5%;
  height: 4%;
  background: var(--black);
  color: var(--black);
  top: 80.25%;
  left: 50%;
  transform: translate(-50%, 0);
  box-shadow: 1vw 0, 2vw 0 0 -0.05vw, -1vw 0, -2vw 0  0 -0.05vw;
}


/***/

#youtube {
  z-index: 2;
  display: block;
  width: 75px;
  height: 55px;
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: red;
  border-radius: 50% / 11%;
  transition: transform 0.5s;
}

#youtube:hover,
#youtube:focus {
  transform: scale(1.1);
}

#youtube::before {
  content: "";
  display: block;
  position: absolute;
  top: 7.5%;
  left: -6%;
  width: 112%;
  height: 85%;
  background: red;
  border-radius: 9% / 50%;
}

#youtube::after {
  content: "";
  display: block;
  position: absolute;
  top: 13px;
  left: 28px;
  width: 45px;
  height: 30px;
  border: 15px solid transparent;
  box-sizing: border-box;
  border-left: 30px solid white;
}

#youtube span {
  font-size: 0;
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

              
            
!

JS

              
                
              
            
!
999px

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