html,
body {
  position: relative;
  width: 100%;
  height: 100%;
  padding: 0;
  margin: 0;
  background: #000;
  color: #fff;
}

.coin {
  font-size: 200px; /* Coin size */
  width: 0.1em;
  height: 1em;
  margin: auto;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  animation: rotate 3s infinite linear;
  transform-style: preserve-3d;
}

.coin .side {
  position: absolute;
  width: 1em;
  height: 1em;
  overflow: hidden;
  background: linear-gradient(darken(#bf031a, 10%), darken(#bf031a, 40%));
  border-radius: 50%;
  right: -0.396em;
  text-align: center;
  line-height: 1;
  color: #bf031a;
  text-shadow: 1px 2px 0 #7a0413, -1px -2px 0 #460416;
  transform: rotateY(-90deg);
  backface-visibility: hidden;
}

.coin .tails {
  left: -0.396em;
  transform: rotateY(90deg);
}

.imageCoin {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  min-height: 1em;
}

@keyframes rotate {
  100% {
    transform: rotateY(360deg);
  }
}

.aboutMe a {
  display: block;
  width: 30%;
  position: fixed;
  bottom: 0;
  left: 20px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.5em;
  font-family: Roboto, sans-serif;
  text-decoration: none;
}