style.css

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Splash screen */
.intro {
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: #040B11;
  transition: 1s;
}

.logo-header {
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #ffffff;
}

.logo {
  position: relative;
  display: inline-block;
  bottom: -20px;
  opacity: 0;
}

.logo.active {
  bottom: 0;
  opacity: 1;
  transition: ease-in-out 0.5s;
  text-transform: uppercase;
  background-image: linear-gradient(-225deg,
      #231557 0%,
      #44107a 29%,
      #ff1361 67%,
      #fff800 100%);
  background-size: auto auto;
  background-clip: border-box;
  background-size: 200% auto;
  color: #fff;
  background-clip: text;
  fill: transparent;

  /* text-fill-color: transparent; */
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: textclip 2s linear infinite;
  display: inline-block;
  font-size: 50px;
}

.logo.fade {
  bottom: 150px;
  opacity: 0;
  transition: ease-in-out 0.5s;
  text-transform: uppercase;
  background-image: linear-gradient(-225deg,
      #231557 0%,
      #44107a 29%,
      #ff1361 67%,
      #fff800 100%);
  background-size: auto auto;
  background-clip: border-box;
  background-size: 200% auto;
  color: #fff;
  background-clip: text;
  fill: transparent;

  /* text-fill-color: transparent; */
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: textclip 2s linear infinite;
  display: inline-block;
  font-size: 50px;
}

@keyframes textclip {
  to {
    background-position: 200% center;
  }
}


@media only screen and (max-width: 400px) {
  .logo.fade {
    font-size: 30px;
  }

  .logo.active {
    font-size: 30px;
  }
}