.titulo {
  background-color: black;
}
.titulo__principal {
  display: block;
  font: 700 4em/1 "Oswald", sans-serif;
  font-size: 40px;
  letter-spacing: 0;
  margin: 0 auto;
  padding: 0.25em 0 0.325em;
  text-align: center;
  text-shadow: 0 0 50px rgba(255, 255, 255, 0.5);

  /* Clip Background Image */

  background: url(https://i.ibb.co/RDTnNrT/animated-text-fill.png) repeat-y;
  -webkit-background-clip: text;
  background-clip: text;

  /* Animate Background Image */

  -webkit-text-fill-color: transparent;
  -webkit-animation: aitf 80s linear infinite;

  /* Activate hardware acceleration for smoother animations */

  -webkit-transform: translate3d(0, 0, 0);
  -webkit-backface-visibility: hidden;
}

/* Animate Background Image */

@-webkit-keyframes aitf {
  0% {
    background-position: 0% 50%;
  }
  100% {
    background-position: 100% 50%;
  }
}

@media screen and (max-width: 480px) {
  .titulo__principal {
    font-size: 8rem;
    margin-bottom: 5rem;
  }
}