text: const about_me = document.getElementById("about_me")
  const contact = document.getElementById("contact")
  
  function add(e) { e.classList.add("invisible") }
  function remove(e) { e.classList.remove("invisible") }
  function toAboutMe() {
      remove(about_me)
      add(contact)
      document.title = "Frabbit - About"
  }
  function toContact() {
      remove(contact)
      add(about_me)
      document.title = "Frabbit - Contact"
  }
  toAboutMe()