.barra-centrada{display:flex;justify-content:center;align-items:center;text-align:center}.barra-centrada::before{content:"";display:inline-block;width:4px;height:1em;background-color:#17144d;margin-right:10px}.boton-fijo-derecha{position:fixed;right:10px;top:50%;transform:translateY(-50%);z-index:9999}