/* animacion derecha pantalla */
div {
  animation-duration: 0s;
  animation-name: slidein;
}

@keyframes slidein {
  from {
    margin-left: 100%;
    width: 300%
  }

  to {
    margin-left: 0%;
    width: 100%;
  }
}

/* ocultar scrolls */
body {
    overflow-x: hidden; 
    overflow-y: hidden;
  }