/* prueba navegacion lateral */
.btn-up {
    position: fixed;
    bottom: 20px;
    left: 20px;
    transform: translate(-50% -50%);
    background-color: skyblue; /* Puedes cambiar el color */
    color: white;
    border-radius: 50%;
    padding: 15px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    transition: all .3s ease-in-out;
    font-size: 24px;
    justify-content: center;
    align-items: center;
    
  }

  .btn-up:hover{
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
    transform: translateY(-10px);
    transition: .3s ease-in-out;
}

.btn-up:active {
    transform: translateY(0) scale(0.9);
    transition: .3s ease-in-out; 
  }