Your average visitor may not notice them in the finished product, but to a web developer, those little bits of HTML and CSS code is all they have put together the final show. HTML5 and CSS3 gives a web developer even more tools with which to express himself, here is a basic overview of what they are so you can build cutting edge websites.
The Navigation Tag
This is an often overlooked area of HTML5. In short, you should always try to wrap relevant links in Nav ( “<nav>” ) tags. It doesn’t seem like much, but it comes into its own element when you consider the SEO prospects for your website.