How to view a content item's HTML source code?

There are two ways to view a content item's source code.

The first one is through Tools > Source code in the text editor's menu bar.

The second one is by clicking the source code icon "< >" in the text editor's standard toolbar.

Clicking either of them will bring up the source code editor. From here, you can copy the HTML code snippet for this content item and paste it somewhere else. You can also paste an HTML code snippet from another source and have it rendered properly in the rich text editor view.