A few tips: First save the presentation after you have inserted the code and before you start writing text. Don't leave a box empty, write some of your own text behind it first to not destroy the code. Do not press the space bar or Enter for line breaks. SHIFT + ENTER = lines break

A few tips: First save the presentation after you have inserted the code and before you start writing text. Don't leave a box empty, write some of your own text behind it first to not destroy the code. Do not press the space bar or Enter for line breaks. SHIFT + ENTER = line break