mark {
  background: none;
  color: inherit;
  font-weight: inherit;
}

.pulsing {
  display: inline-block;
  animation: pulsing-animation 1.5s ease-in-out infinite;
}

@keyframes pulsing-animation {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.06);
  }
  70% {
    transform: scale(1.06);
  }
  100% {
    transform: scale(1);
  }
}

@media screen and (min-width: 768px) {
  @keyframes pulsing-animation {
    0% {
      transform: scale(1);
    }
    50% {
      transform: scale(1.08);
    }
    70% {
      transform: scale(1.08);
    }
    100% {
      transform: scale(1);
    }
  }
}