Hover Overlays

Most tags and elements in the editor contain additional information that is accessible by mousing over the text of that element. Some information is context dependent, but may include MDN Reference information, Can I Email support, components documentation, and other helpful information.

Up close image of the code editor with some simple HTML code. The user has moused over the <title> tag, revealing a overlay with additional information from the MDN reference about that tag.
Screenshot of the editor with the MDN reference for the <title> tag shown in the hover overlay

You can turn off the overlay information at any time in the Editor preferences pane.