This here is your navigation frame. It's 30% of the window-width, and I've given it a background colour so you can easily see the distinction.

Also note that your browser adds in a pretty big border between the frames — you can drag this to resize the pages relative to each other.

You can click a link below to open another page in the content frame.

• Open page 2 of content
• Open the basic frames tutorial.

• Break out of the frameset and open HTML Source homepage