'Visual' mode and 'Code' mode
An online editor has two modes - visual mode and code mode. You should only need to use visual mode.
Sometimes, when you edit a text box, you might find that the editor has been left in code mode. No problem! Just click the switch to visual button at the bottom right.
Starting a new line versus starting a new paragraph
Online editors work slightly differently than editors like Microsoft Word. In an online editor:
To create a new paragraph, hit the enter/return key once:
[RETURN] => starts a new paragraph
To move down to the very next line, without starting a new paragraph, hold down the shift key as you hit the enter/return key:
[SHIFT] + [RETURN] => starts a new line