What is the HTML Editor in eClass?
The HTML editors in our eClass system we're going to cover here are the Atto editor and the TinyMCE editor. The editors are available in forums, assignments, pages, labels, descriptions, quiz questions, and more.
Editing in HTML allows instructors and students to create formatted content using a visual editor, but also includes a raw HTML view for advanced customization.
To get to it, open any activity that has a place where you can enter text (in this example, it is an activity description).
This is the Atto editor - If you do not immediately see the </> icon, expand the menu with the drop down arrow key on the side:

For the TinyMCE editor, HTML can be accessed by navigating to the Tools menu and then selecting Source code:
