!doctype html
html lang=vi
head
  meta charset=utf-8 
  meta name=viewport content=width=device-width, initial-scale=1 
  titleMy Portfoliotitle
  style
    body{margin0;font-familysystem-ui,Segoe UI,Roboto,Arial;background#0b1220;color#e5e7eb}
    header{positionsticky;top0;backgroundrgba(11,18,32,.72);backdrop-filterblur(10px);border-bottom1px solid rgba(229,231,235,.12)}
    .wrap{max-width1100px;margin0 auto;padding12px 16px;displayflex;justify-contentspace-between;gap12px;align-itemscenter}
    nav{displayflex;gap8px;flex-wrapwrap}
    a{color#e5e7eb;text-decorationnone;padding8px 10px;border-radius10px}
    a.active{backgroundrgba(255,255,255,.08)}
    iframe{width100%;heightcalc(100vh - 58px);border0;displayblock}
  style
head
body
  header
    div class=wrap
      div style=font-weight800My Portfoliodiv
      nav id=nav
        a href=home data-page=homeHomea
        a href=about data-page=aboutAbouta
        a href=resume data-page=resumeResumea
        a href=projects data-page=projectsProjectsa
        a href=contact data-page=contactContacta
      nav
    div
  header

  iframe id=appiframe

  script
    const EXEC_URL = PASTE_YOUR_APPS_SCRIPT_EXEC_URL;  - dán ...exec vào đây
    const iframe = document.getElementById(app);
    const nav = document.getElementById(nav);

    function currentPage() {
      const p = (location.pathname  home).replace(^+, );
      return p  home;
    }

    function setActive(page) {
      nav.querySelectorAll(a[data-page]).forEach(a =
        a.classList.toggle(active, a.getAttribute(data-page) === page)
      );
    }

    function load(page) {
      setActive(page);
      iframe.src = `${EXEC_URL}page=${encodeURIComponent(page)}&embed=1`;
    }

    nav.querySelectorAll(a[data-page]).forEach(a = {
      a.addEventListener(click, (e) = {
        e.preventDefault();
        const page = a.getAttribute(data-page);
        history.pushState({}, , `${page}`);
        load(page);
      });
    });

    window.addEventListener(popstate, () = load(currentPage()));
    load(currentPage());
  script
body
html