Website Review 2 CSS Magic

1. The sites's URL is https://www.hongkiat.com/blog/built-with-css/. Because It is easir to navigate and it works when I copy and past it new tab.
2. The home page does not validate.
3. The second site I choose doesn't validate.
4. Both pages have a validate errors and warning of 262. 83 in the home page, and 179 in the second page I chose.
5. The design of the site is ok so 7.
6. I would rate the site's usability 4 it works but there are cookies and ads poping up.
7. I guess it did not since the site doesn't validate.