/* BOTÃO LIMPAR */

#limpar {
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-size: 2rem;
  cursor: pointer;
  animation: varrer 3s infinite ease-in-out;
  transform-origin: bottom center;
  z-index: 1000;
}

#limpar:hover {
  transform: scale(1.15);
}

/* ANIMAÇÃO DE VARRIDA */

@keyframes varrer {
  0% {
    transform: rotate(0deg);
  }

  20% {
    transform: rotate(-15deg);
  }

  40% {
    transform: rotate(10deg);
  }

  60% {
    transform: rotate(-10deg);
  }

  80% {
    transform: rotate(5deg);
  }

  100% {
    transform: rotate(0deg);
  }
}

@media screen and (max-width: 480px) {
  #limpar {
    font-size: 1.5rem;
  }
}