text: let closeMenu
  let menu
  let openMenu
  
  function hightlightCurrentMenuItem() {
      const el = document.querySelector(`#menu [href='${window.location.pathname}']`)
      el && el.classList.add('current-page')
  }
  
  function init() {
      closeMenu = document.querySelector('#close-menu')
      menu = document.querySelector('#menu')
      openMenu = document.querySelector('#open-menu')
  }
  
  function toggleMenuHandler() {
      closeMenu.classList.toggle('dn')
      menu.classList.toggle('dn')
      menu.classList.toggle('fade-in')
      openMenu.classList.toggle('dn')
  }
  
  module.exports = function menu() {
      init()
  
      openMenu.addEventListener('click', toggleMenuHandler)
      closeMenu.addEventListener('click', toggleMenuHandler)
  
      hightlightCurrentMenuItem()
  }
  