HTML and XML are structural foundations of every website or application. It is crucial that developers learn — and master — both.

The HTML Code for Nested Lists. HTML offers a flexible way to create nested lists through its unordered and ordered list elements. These can be nested inside each other an unlimited number of ...

To view source code on a webpage using frames, repeat the steps in each frame. If the webpage won't allow you to right-click, view the HTML through the browser's menu bar.