.boton-transparente{display:block;-webkit-box-sizing:border-box;box-sizing:border-box;padding-right:0;background:transparent;border-radius:4px;text-align:center;text-decoration:none;letter-spacing:1px;-webkit-transition:all .3s ease-out;transition:all .3s ease-out}.centrar{padding:10px 0}.centrar-texto{text-align:center;font-size:30px}