There are three different types of toggles:
These toggles create a header with a hidden block of text that is displayed when the user clicks on the header. Here is an example of an expanding section toggle:
These toggles create a link like this Inline text toggles can be used instead of popups for definitions and other references. that expands when the user clicks on it to display additional text, that can be formatted in a different way to highlight it. The text is displayed in the flow of the paragraph, as though it had been pasted into the paragraph.
These toggles create a small version of a graphic or other image that expands when the user clicks on it. Here is an example of an expanding image toggle: