There is nothing really specific that will make a site good. A website, as I mentioned before, is about expressing your 'personality'. This is what makes a site interesting, because everyone has a unique personality.

If you are designing your website yourself, I suggest you learn some HTML before starting. I used HTML editor and didn't know the first thing about it. It has been a bit of struggle but there are some great tutorials online. Go here to learn everything you need to know about HTML.

If you are designing your site, HTML is the only code you should use.

A few other things to keep in mind when creating a website:

It must load fast. Otherwise, people will lose patience and click to another site. Anything over 10 seconds is way too long.

It should have a great headline and a great opening sentence. You have 10 seconds to get a person