.section {
  animation: background-pulse 10s linear infinite;
}

@keyframes background-pulse {
  0% {
    background-color: var(--color-sky-blue);
  }

  50% {
    background-color: var(--color-blue-light);
  }

  100% {
    background-color: var(--color-sky-blue);
  }
}

.slide {
  position: relative;
}