body {
    background-color: black;
    background-image: url(images/starsi.gif);
    color: white;
    font-family: arial;
    overflow: hidden;
    margin-left: 0;
  }

  .container {
    height: 100vh;
    display: flex;
    justify-content: center;   
    align-items: center;                     
  }
  .menu{
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;   /* distancia vertical */
  }
  .buttons {
    display: flex;
    gap: 20px;   /* distancia horizontal */
  }
  .btn {
    width: 36px;
    height: 36px;
    display: inline-block;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    text-decoration: none;
    position: relative;
    animation: float 2s ease-in-out infinite;
  }
  .btn::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 120%;              /* arriba del botón */
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
  
    background: rgba(0, 0, 0, 0.8);
    color: white;
    font-size: 12px;
    padding: 4px 8px;
    border-radius: 4px;
  
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    transform: translate(-50%, 5px);
  }
  .btn:hover::after {
    opacity: 1;
    transform: translate(-50%, 0);
  }
  .posventa {
    background-image: url(images/36.png);
  }
  
  .soundcloud {
    background-image: url(images/38.png);
  }
  .pagina {
    background-image: url(images/37.png);
  }
  .next {
    background-image: url(images/39.png);
  }
  .top-btn{
    background-image: url(images/333.png);
  }
  .btn:hover {
    transform: scale(1.1);
    opacity: 0.8;
  }
    @keyframes float {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
  100% {
    transform: translateY(0);
  }
}