/*Crea tu propio estilo*/
. ¿padres? . sub{pantalla:? Ninguno;}
& lt/style & gt;
& ltul? class="padre "
& ltLi? class="pli "
& ltspan & gtphp & lt/span>.
<ul? class="son " >>p>
& lt李& gtPHP 1 & lt;/李& gt
& lt李& gtPHP 1 & lt;/李& gt
& lt/ul & gt;
& lt/李& gt
& lt李? class="pli "
& ltspan & gtphp & lt/span>.
<ul? class="son " >>p>
& lt李& gtPHP 1 & lt;/李& gt
& lt李& gtPHP 1 & lt;/李& gt
& lt/ul & gt;
& lt/李& gt
& lt李? class="pli "
& ltspan & gtphp & lt/span>.
<ul? class="son " >>p>
& lt李& gtPHP 1 & lt;/李& gt
& lt李& gtPHP 1 & lt;/李& gt
& lt/ul & gt;
& lt/李& gt
& lt李? class="pli "
& ltspan & gtphp & lt/span>.
<ul? class="son " >>p>
& lt李& gtPHP 1 & lt;/李& gt
& lt李& gtPHP 1 & lt;/李& gt
& lt/ul & gt;
& lt/李& gt
& lt李? class="pli "
& ltspan & gtphp & lt/span>.
<ul? class="son " >>p>
& lt李& gtPHP 1 & lt;/李& gt
& lt李& gtPHP 1 & lt;/李& gt
</ul>
</李>
</ul>var? ¿pli? =?document.querySelectorAll(".parent?.pli?span");
for(var?i?=?0;i<pli.length;i++){
pli[ i]. ¿índice? =?i;
pli[i]. al hacer clic? =?function(){
for(var?j?=?0;j<pli.length;j++){
document.querySelectorAll(".parent?.pli? . hijo ")[j]. style . display = " none ";
}
this.parentNode.querySelector(". son "). style . display = " block " ;
}
}