Tab-Galleries Super-Corto javascript

                  window.addEventListener('DOMContentLoaded', (event) => {
	document.addEventListener('click', (e)=>{
	if(e.target.classList.contains('enlace-tabs_pagina')){
	    let elsChildren = e.target.offsetParent.offsetParent
		let numero=0
		for(i=0; i<elsChildren.childElementCount; i++){
			elsChildren.children[i].classList.remove('activo')
			let childrenId =elsChildren.children[i].firstChild.id
			elsChildren.offsetParent.nextSibling.children[i].classList.remove('tab-activo')
			elsChildren.offsetParent.offsetParent.previousSibling.children[i].classList.remove('tab-activo')
			if(childrenId === e.target.id) numero = i
		}
		let txtActivo = elsChildren.offsetParent.nextSibling.children[numero].classList.add('tab-activo')
		let imgActivo = elsChildren.offsetParent.offsetParent.previousSibling.children[numero].classList.add('tab-activo')
		e.target.offsetParent.classList.add('activo')
		}		
	})
})