In my courses I use initially hidden text blocks and show them using feedback actions. Then they can be formatted any way you want and as an added bonus they work better for mobile and do not require the student to click OK to dismiss the feedback.
If you really want to use the Display Message popup you can also enter HTML in the Message, for example I use this as one of my incorrect messages:
<p style="background-color:red;align:center"><span style="color:white;font-weight:bold">Incorrect</span></p> No person under the age of 21 can possess alcoholic beverages on the street, highway or any public place.
See the attached image for how this looks.
Modifying the coure dialogs with CSS only works in Lectora Online, not the Desktop product.
- This reply was modified 1 year, 8 months ago by Joe Wieloch.