SOURCE

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">
  <title>logo-symbol-night</title>
  <g id="logo-symbol-night">
    <path class="logo-eyes" d="M70.78,69.45a19.37,19.37,0,0,1-10.7-3.21,11.41,11.41,0,0,0,.29-2.51c0-7.07-3.5-11.81-9-12.45,0-.43,0-.87,0-1.31A19.49,19.49,0,1,1,70.78,69.45Z" />
    <path class="logo-eyes" d="M29.22,69.45A19.49,19.49,0,1,1,48.71,50c0,.44,0,.88,0,1.31-5.53.63-9,5.38-9,12.45a11.41,11.41,0,0,0,.29,2.51A19.37,19.37,0,0,1,29.22,69.45Z" />
    <g id="eyes">
      <circle class="logo-color" cx="29.22" cy="49.96" r="7.91" />
      <circle class="logo-color" cx="70.78" cy="49.96" r="7.91" />
    </g>
    <g id="eyelids">
      <polygon id="eyelid-right" class="logo-color" points="82 70.87 57.98 70.87 57.98 57.3 90.75 57.3 82 70.87" />
      <polygon id="eyelid-left" class="logo-color" points="42.02 70.87 18.9 70.87 9.25 57.3 42.02 57.3 42.02 70.87" />
    </g>
    <g id="eyebrows">
      <polygon id="eyebrow-left" class="logo-color" points="5 26 5 41.6 50 46.96 50 26 5 26" />
      <polygon id="eyebrow-right" class="logo-color" points="50 26 50 46.96 95 41.6 95 26 50 26" />
    </g>
    <path class="logo-nose" d="M50,75.85c-2-1.3-7.84-5.68-7.83-12.13,0-10.39,7.86-10,7.86-10s7.81-.39,7.81,10C57.84,70.17,52,74.56,50,75.85Z" />
  </g>
</svg>

$bg: #1a1a1a;
$fg: white;
@keyframes eyes {
  15% {
    transform: translate(0, 0);
    animation-timing-function: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  }
  19% {
    transform: translate(-8%, 0);
    animation-timing-function: cubic-bezier(0.175, 0.885, 0.32, 1.05);
  }
  22% {
    transform: translate(5%, 3%);
    animation-timing-function: cubic-bezier(0.175, 0.885, 0.32, 1.05);
  }
  23% {
    transform: translate(0, 0);
  }
  30% {
    transform: translate(0, 0);
  }
  32% {
    transform: translate(0, 0);
    animation-timing-function: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  }
  35% {
    transform: translateX(8%);
    animation-timing-function: ease-out;
  }
  38% {
    transform: translateX(-8%);
    animation-timing-function: ease-out;
  }
  39% {
    transform: translate(0, 0);
  }
}

@keyframes eyebrows {
  0% {
    transform: translateY(-30%);
    animation-timing-function: ease-in;
  }
  0.2% {
    transform: translateY(0);
    animation-timing-function: ease-out;
  }
  0.4% {
    transform: translateY(-30%);
  }
  10% {
    transform: translateY(-30%);
    animation-timing-function: ease-in;
  }
  10.2% {
    transform: translateY(0);
    animation-timing-function: ease-out;
  }
  10.4% {
    transform: translateY(-30%);
  }
  28% {
    transform: translateY(-30%);
    animation-timing-function: ease-in;
  }
  30% {
    transform: translateY(15%);
  }
  41% {
    transform: translateY(15%);
    animation-timing-function: ease-out;
  }
  41.5% {
    transform: translateY(-30%);
  }
  50% {
    transform: translateY(-30%);
    animation-timing-function: ease-in;
  }
  50.2% {
    transform: translateY(0);
    animation-timing-function: ease-out;
  }
  50.4% {
    transform: translateY(-30%);
  }
  60% {
    transform: translateY(-30%);
    animation-timing-function: ease-in;
  }
  60.2% {
    transform: translateY(0);
    animation-timing-function: ease-out;
  }
  60.4% {
    transform: translateY(-30%);
  }
}

@keyframes eyelids {
  0% {
    transform: translateY(100%);
    animation-timing-function: ease-in;
  }
  0.2% {
    transform: translateY(0);
    animation-timing-function: ease-out;
  }
  0.4% {
    transform: translateY(100%);
  }
  10% {
    transform: translateY(100%);
    animation-timing-function: ease-in;
  }
  10.2% {
    transform: translateY(0);
    animation-timing-function: ease-out;
  }
  10.4% {
    transform: translateY(100%);
  }
  28% {
    transform: translateY(100%);
    animation-timing-function: ease-in;
  }
  30% {
    transform: translateY(20%);
  }
  41% {
    transform: translateY(20%);
    animation-timing-function: ease-out;
  }
  41.5% {
    transform: translateY(100%);
  }
  50% {
    transform: translateY(100%);
    animation-timing-function: ease-in;
  }
  50.2% {
    transform: translateY(0);
    animation-timing-function: ease-out;
  }
  50.4% {
    transform: translateY(100%);
  }
  60% {
    transform: translateY(100%);
    animation-timing-function: ease-in;
  }
  60.2% {
    transform: translateY(0);
    animation-timing-function: ease-out;
  }
  60.4% {
    transform: translateY(100%);
  }
}

@keyframes eyelid-right {
   5% {
    transform: translateY(100%);
    animation-timing-function: ease-in;
  }
  5.2% {
    transform: translateY(0);
    animation-timing-function: ease-out;
  }
  5.4% {
    transform: translateY(100%);
  }
}

body {
  background-color: $bg;
  text-align: center;
}

svg {
  max-width: 300px;
}

.logo-color {
  fill: $bg;
}

.logo-nose,
.logo-eyes {
  fill: $fg;
}

#eyes {
  transform-origin: center;
  animation: eyes 60s linear 2s infinite;
}

#eyebrow-left,
#eyebrow-right {
  transform: translateY(-30%);
  transform-origin: center;
  animation: eyebrows 60s linear 2s infinite;
}

#eyelids {
  transform: translateY(100%);
  transform-origin: center;
  animation: eyelids 60s linear 2s infinite;
}