Pure CSS Emoji

index.html

<div class="head">
  <div class="face face__happy">
    <div class="eye-left"></div>
    <div class="eye-right"></div>
    <div class="mouth"></div>
  </div>
</div>
<div class="head">
  <div class="face face__standard">
    <div class="eye-left"></div>
    <div class="eye-right"></div>
    <div class="mouth"></div>
  </div>
</div>
<div class="head">
  <div class="face face__sad">
    <div class="eye-left"></div>
    <div class="eye-right"></div>
    <div class="mouth"></div>
  </div>
</div>

Pure CSS Emoji.markdown

Pure CSS Emoji

Pure CSS Emoji

A Pen by Peter Butcher on CodePen.

License.

style.css

html, body {
  margin: 0;
  display: flex;
  width: 100%;
  height: 100%;
  background-color: #FFFCEF;
}

.head {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  margin: auto;
  width: 250px;
  height: 250px;
  background-color: #FFEB97;
  border-radius: 50%;
  position: relative;
}

.face {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  margin: auto;
  width: 250px;
  height: 250px;
  position: relative;
}

.face__happy {
  animation: happy-look 5s infinite;
}

.face__standard {
  animation: standard-look 5s infinite;
}

.face__sad {
  animation: sad-look 5s infinite;
}

.face__happy .eye-left {
  width: 25px;
  height: 25px;
  background-color: #000;
  border-radius: 50%;
  top: 75px;
  left: 45px;
  position: absolute;
  animation: blink 5s infinite;
}

.face__happy .eye-right {
  width: 25px;
  height: 25px;
  background-color: #000;
  border-radius: 50%;
  top: 75px;
  right: 45px;
  position: absolute;
  animation: blink 5s infinite;
}

.face__happy .mouth {
  width: 100px;
  height: 50px;
  border-style: solid;
  border-radius: 50%;
  border-width: 8px;
  border-color: transparent transparent #000 transparent;
  left: 68px;
  top: 75px;
  position: absolute;
  animation: happy-mouth 5s infinite;
}

.face__standard .eye-left {
  width: 25px;
  height: 25px;
  background-color: #000;
  border-radius: 50%;
  top: 125px;
  left: 45px;
  position: absolute;
  animation: blink 5s infinite;
  animation-delay: 1.3s;
}

.face__standard .eye-right {
  width: 25px;
  height: 25px;
  background-color: #000;
  border-radius: 50%;
  top: 125px;
  right: 45px;
  position: absolute;
  animation: blink 5s infinite;
  animation-delay: 1.3s;
}

.face__standard .mouth {
  width: 75px;
  height: 8px;
  border-radius: 8px;
  background-color: #000;
  left: 90px;
  top: 175px;
  position: absolute;
}

.face__sad .eye-left {
  width: 25px;
  height: 25px;
  background-color: #000;
  border-radius: 50%;
  top: 150px;
  left: 45px;
  position: absolute;
  animation: blink 5s infinite;
  animation-delay: 3.7s;
}

.face__sad .eye-right {
  width: 25px;
  height: 25px;
  background-color: #000;
  border-radius: 50%;
  top: 150px;
  right: 45px;
  position: absolute;
  animation: blink 5s infinite;
  animation-delay: 3.7s;
}

.face__sad .mouth {
  width: 100px;
  height: 50px;
  border-style: solid;
  border-radius: 50%;
  border-width: 8px;
  border-color: #000 transparent transparent transparent;
  left: 68px;
  top: 186px;
  position: absolute;
  animation: sad-mouth 5s infinite;
}

@keyframes blink {
  0% {
    transform: scale(1, 1);
  }
  10% {
    transform: scale(1, 1);
  }
  12% {
    transform: scale(1, .1);
  }
  14% {
    transform: scale(1, 1);
  }
  30% {
    transform: scale(1, 1);
  }
  32% {
    transform: scale(1, .1);
  }
  34% {
    transform: scale(1, 1);
  }
  60% {
    transform: scale(1, 1);
  }
  62% {
    transform: scale(1, .1);
  }
  64% {
    transform: scale(1, 1);
  }
}

@keyframes happy-look {
  0% {
    transform: translate(0px, 0px);
  }
  10% {
    transform: translate(10px, 0px);
  }
  20% {
    transform: translate(10px, 0px);
  }
  30% {
    transform: translate(0px, 0px);
  }
  60% {
    transform: translate(0px, 0px);
  }
  70% {
    transform: translate(-10px, -15px);
  }
  80% {
    transform: translate(-10px, -15px);
  }
  90% {
    transform: translate(0px, 0px);
  }
}

@keyframes happy-mouth {
  0% {
    height: 50px;
  }
  10% {
    height: 50px;
  }
  20% {
    height: 50px;
  }
  30% {
    height: 50px;
  }
  60% {
    height: 50px;
  }
  70% {
    height: 40px;
  }
  80% {
    height: 40px;
  }
  90% {
    height: 50px;
  }
}

@keyframes standard-look {
  0% {
    transform: translate(0px, 0px);
  }
  10% {
    transform: translate(-25px, 0px);
  }
  20% {
    transform: translate(-25px, 0px);
  }
  30% {
    transform: translate(0px, 0px);
  }
  60% {
    transform: translate(0px, 0px);
  }
  70% {
    transform: translate(15px, -15px);
  }
  80% {
    transform: translate(15px, -15px);
  }
  90% {
    transform: translate(0px, 0px);
  }
}

@keyframes sad-look {
  0% {
    transform: translate(0px, 0px);
  }
  15% {
    transform: translate(0px, 0px);
  }
  25% {
    transform: translate(0px, -25px);
  }
  35% {
    transform: translate(0px, -25px);
  }
  45% {
    transform: translate(0px, 0px);
  }
  70% {
    transform: translate(0px, 0px);
  }
  80% {
    transform: translate(-15px, -25px);
  }
  90% {
    transform: translate(-15px, -25px);
  }
  100% {
    transform: translate(0px, 0px);
  }
}

@keyframes sad-mouth {
  0% {
    height: 25px;
  }
  15% {
    height: 25px;
  }
  25% {
    height: 50px;
  }
  35% {
    height: 50px;
  }
  45% {
    height: 25px;
  }
  70% {
    height: 25px;
  }
  80% {
    height: 50px;
  }
  90% {
    height: 50px;
  }
  100% {
    height: 25px;
  }
}