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HTML 

              
                <div class="cell cell-0"></div>
<div class="cell cell-1"></div>
<div class="cell cell-2"></div>
<div class="cell cell-3"></div>
<div class="cell cell-4"></div>
<div class="cell cell-5"></div>
<div class="cell cell-6"></div>
<div class="cell cell-7"></div>
<div class="cell cell-8"></div>

<div class="cartoon hb">
  <div class="arm arm-1 r"></div>
  <div class="arm arm-2 r"></div>
  <div class="jacket-neck ha hb"></div>
  <div class="ear"></div>
  <div class="ear"></div>
  <div class="jacket ha hb"></div>
  <div class="neck"></div>
  <div class="face">
    <div class="mouth r ha hb">
      <div class="tongue"></div>
    </div>
    <div class="top-lip"></div>
    <div class="nose"></div>
    <div class="eye r ha hb"></div>
    <div class="top-hair ha hb"></div>
  </div>
</div>


<a id="youtube" href="https://www.youtube.com/watch?v=utbqKyn7QEU" target="_blank">
  <span>See how this video was made</span>
</a>
!

CSS 

              
                .cartoon {
  position: absolute;
  bottom: 0%;
  left: 50%;
  transform: translate(-50%, 0%);
  width: 80vmin;
  height: 80vmin;
}

.cartoon div {
  position: absolute;
  box-sizing: border-box;
}

.b {
  border: 0.5vmin solid;
}

.r {
  border-radius: 100%;
}

.hb::before,
.ha::after {
  content: "";
  display: block;
  position: absolute;
  box-sizing: border-box;
}

/****/
body {
  width: 100vw;
  height: 100vh;
  margin: 0;
  padding: 0;
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  grid-template-rows: repeat(3, 1fr);
  grid-template-columns: repeat(3, 1fr);
  overflow: hidden;
  background: #bbb;
}

.cell {
  z-index: 1;
}

.cell-0:hover ~ .cartoon .eye::before { top: 25%; left: 25%; }
.cell-1:hover ~ .cartoon .eye::before { top: 25%; left: 50%; }
.cell-2:hover ~ .cartoon .eye::before { top: 25%; left: 75%; }
.cell-3:hover ~ .cartoon .eye::before { top: 50%; left: 25%; }
.cell-4:hover ~ .cartoon .eye::before { top: 50%; left: 50%; }
.cell-5:hover ~ .cartoon .eye::before { top: 50%; left: 75%; }
.cell-6:hover ~ .cartoon .eye::before { top: 75%; left: 25%; }
.cell-7:hover ~ .cartoon .eye::before { top: 75%; left: 50%; }
.cell-8:hover ~ .cartoon .eye::before { top: 75%; left: 75%; }


/****/
.cartoon {
  --skin: #949;
  --fang: #eee;
  --blood: #d00;
  --mouth: #222;
  --shadow: rgba(0,0,0,0.35);
  --hair: #111;
  overflow: hidden;
}

.face {
  width: 35%;
  height: 50%;
  background: var(--skin);
  border-radius: 100% / 60% 60% 120% 120%;
  top: 10%;
  left: 50%;
  transform: translate(-50%,  0);
  box-shadow:  0 -7vmin 0 1vmin var(--hair)
}

.top-lip {
  width: 70%;
  height: 20%;
  background: var(--skin);
  border-radius: 0 0 100% 100%;
  top: 55%;
  left: 50%;
  transform: translate(-50%, 0);
}

.mouth {
  width: 55%;
  height: 43%;
  top: 45%;
  left: 50%;
  transform: translate(-50%, 0);
  background: linear-gradient(var(--skin) 50%, var(--mouth) 0);
  overflow: hidden;
}

.mouth::after,
.mouth::before {
  width: 8%;
  height: 15%;
  background: var(--fang);
  border-radius: 0 0 0 100%;
  top: 63%;
  left: 20%;
  abackground: linear-gradient(var(--fang) 70%, var(--blood));
}

.mouth::after {
  left: auto;
  right: 20%;
  transform: scaleX(-1);
}

.tongue {
  width: 80%;
  height: 70%;
  bottom: 0;
  left: 50%;
  background: var(--blood);
  border-radius: 50%;
  transform: translate(-50%, 80%);
  box-shadow: 0 -7.75vmin 0 -5.5vmin var(--mouth), 0 -5vmin 0 -3.5vmin
}

.nose {
  width: 20%;
  height: 30%;
  background: #f007;
  top: 38%;
  left: 50%;
  transform: translate(-50%, 0);
  border-radius: 100% / 150% 150% 60% 60%;
  background: var(--shadow);
}

.eye {
  width: 25%;
  height: 20%;
  background: var(--fang);
  top: 32%;
  left: 26%;
  transform: translate(-50%, 0);
  box-shadow: 13.5vmin 0 var(--fang),
    0 -1vmin 0 1vmin var(--skin),
    0 -2.75vmin var(--hair),
    13.5vmin -1vmin 0 1vmin var(--skin),
    13.5vmin -2.75vmin var(--hair);
}

.eye::before {
  width: 2vmin;
  height: 2vmin; 
  background: var(--mouth);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 13.5vmin 0 var(--mouth);
  transition: top 0.5s, left 0.5s;
}

.ear {
  width: 10%;
  height: 30%;
  border-radius: 0% 100% 10% 100%;
  background: var(--skin);
  top: 20%;
  left: 26%;
  box-shadow: inset -1vmin 0 1vmin var(--shadow);
}

.ear + .ear {
  left: auto;
  right: 26%;
  transform: scaleX(-1);
}

.top-hair {
  width: 90%;
  height: 15%;
  top: -5%;
  left: 50%;
  transform: translate(-50%, 0);
  background: var(--hair);
  border-radius: 0 0 100% 100%;
}

.top-hair::before {
  height: 120%;
  width: 15%;
  border-right: 0.5vmin solid var(--fang);
  border-radius: 50%;
  left: 50%;
  top: -25%;
  transform: translate(-50%, 0);
  box-shadow: 1vmin -1vmin 0 1vmin var(--hair), 1.5vmin -1vmin 0 0.75vmin var(--fang);
}

.neck {
  width: 10%;
  height: 15%;
  background: var(--skin);
  left: 50%;
  transform: translate(-50%, 0);
  top: 55%;
  background-image: linear-gradient(var(--shadow), transparent 50%);
  border-radius: 10vmin / 0 0 50% 50%;
}

.jacket {
  width: 40%;
  height: 50%;
  background: var(--mouth);
  top: 65%;
  left: 50%;
  transform: translate(-50%, 0);
  border-radius: 100% / 40% 40% 140% 140%;
}

.jacket::before {
  width: 35%;
  height: 60%;
  background: var(--fang);
  left: 50%;
  top: 1%;
  transform: translate(-50%, 0);
  border-radius: 100% / 30% 30% 140% 140%;
}

.jacket::after {
  width: 25%;
  height: 50%;
  left: 50%;
  top: 1%;
  transform: translate(-50%, 0);
  border-radius: 50%;
  box-shadow: inset 0.5vmin 0.5vmin white, inset -0.5vmin 0.5vmin white;
  background: linear-gradient(to right, transparent 48%, white 50%, transparent 52%);
}

.jacket-neck {
  width: 20%;
  height: 10%;
  transform: translate(-50%, 0);
  background: var(--mouth);
  top: 60%;
  left: 50%;
}

.jacket-neck::before {
  width: 50%;
  height: 100%;
  left: -15%;
  background: var(--mouth);
  transform: skew(20deg);
}

.jacket-neck::after {
  width: 50%;
  height: 100%;
  right: -15%;
  background: var(--mouth);
  transform: skew(-20deg);
}

.arm {
  border: 5vmin solid transparent;
  height: 70%;
  width: 30%;
  top: 64%;
}

.arm-1 {
  border-left-color: var(--mouth);
  transform: rotate(15deg);
  left: 20%;
}

.arm-2 {
  border-right-color: var(--mouth);
  transform: rotate(-15deg);
  right: 20%;
}


/***/

#youtube {
  z-index: 2;
  display: block;
  width: 100px;
  height: 70px;
  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: 20px;
  left: 40px;
  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
!
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