.levitate {
  display: inline-block;
  animation: levitate 2s ease-in-out infinite alternate; 
  will-change: transform;
}

@keyframes levitate {
  from {
    transform: translateY(-15px); /* wyżej */
  }
  to {
    transform: translateY(10px);  /* niżej */
  }
}

@media (prefers-reduced-motion: reduce) {
  .levitate {
    animation: none;
  }
}