By default, the navigation bar stops rendering after the last link displays. You can use the CSS "height" property to force the navigation bar to extend to the bottom of the page.

Open your HTML file in a text editor. Ensure that the divider for the navigation bar, identified with a tag, is located directly following the divider for the header.

How do I learn to code in HTML and CSS on my Mac? Web design is one of the most useful skills you can learn, and it’s easy to learn HTML and CSS (the two main pillars of web pages) in Mac OS X.

HTML, or Hyper Text Markup Language, is primitive by itself and needs CSS to give it the modern look of a website we’re used to. HTML alone gives us the looks of websites back in the late 90s and ...