The DEMO version only includes 10 pages:
http://vercel.app
http://vercel.app/education/en/about.html
http://vercel.app/education/en/about-team.html
http://vercel.app/education/en/blog.html
http://vercel.app/education/en/detail-blog.html
http://vercel.app/education/en/login.html
http://vercel.app/education/en/register.html
http://vercel.app/education/en/contact.html
http://vercel.app/education/en/contact-map.html
http://vercel.app/education/en/collection.html

It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www6.waybackmachinedownloader.com/website-downloader-online/scrape-all-files/ to buy a fully functioning site.
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