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.

Learn how to document HTML code for web-based telecommunications systems using comments, formatting, and tools. Improve your development, quality, and compliance.

To format HTML code using the Code Blocks extension, open your Google Docs document, paste the HTML code into the designated area in the Code Blocks panel accessed via the “Extensions” menu ...

It’s easy to follow and designed for beginners. I have included images so you can see what the HTML 5 code should look like. I’d also recommend using this free HTML Code Editor.