A selected state is usually found in a list of navigation links to show what link is selected at that moment. This is a great way to show a user where they’re at within the site. For example if a site visitor is on the About Us page, the “About Us” link in the header would have some sort of selected state activated. The text may be bold, underlined, a different colour or all of the above.
For anything to work well, care must be taken to make firm, workable plans to execute it and the same goes for website designs.