of affordability – User-friendliness for WYSIWYG "floating" editors such as Medium and Summernote "Airmode"

Currently, some WYIWYG editors (medium.com and summernote airmode) provide a "floating" toolbar for editing text. That is to say. The user highlights the text and a toolbar appears above the text, which allows the user to change the text to bold, and so on.

I think it's a very practical way to edit text because it cleans the interface and allows us to reduce the number of buttons to reduce unnecessary savings, but it remains hidden from view. Only after selecting the text, it displays the toolbar.

How do you think this type of editor is convenient for a novice user?