When you copy and paste unformatted text into a textbox in Lectora Online, you get a formatting box on top of that textfield so you can quickly change the format for that text. However when you use that, the textformatting is different then when you use the formatting options in the tab-text on top. The text looks bolder when using the inline editor.
Its not consequent behaviour, i did encounter times when it looked ok. But 8 out of 10 times it looks bolder.
Check the image below to see the difference. Using Calibri 16 px.