body{
  font-family: 'Proxima Nova', sans-serif;
  background: #121213;
  margin: 0;
  overflow: hidden;
}

.container {
  color: #252525;
  position: absolute;
  left: 50%;
  top: 25%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  font-size: 64px;
  font-weight: bold;
  user-select: none;
}
.letter {
  animation-duration: 2s;
  animation-timing-function: ease-in-out;
  animation-iteration-count: infinite;
}
.t {
  animation-name: floatUpDown;
}
.b {
  animation-name: floatUpDown;
  animation-delay: 0.5s;
}
.c {
  animation-name: floatUpDown;
  animation-delay: 1s;
}
@keyframes floatUpDown {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

.text-content{
  color: #252525;
  position: absolute;
  left: 50%;
  top: 28%;
  transform: translate(-50%, -50%);
  font-size: 18px;
  font-weight: bold;
  cursor: default;
  user-select: none;
}

@media only screen and (max-width: 767px) {
  .container {
    left: 50%;
    top: 25%;
    font-size: 13vw;
  }

  .text-content{
    color: #252525;
    left: 50%;
    top: 28%;
    font-size: 3.5vw;
    font-weight: bold;
  }
}