I have been experiencing alot of problems on Yola this week.  My peer suggested that I increase the text size on my website and now that it has been bought to my attention, I agree that the text is too small and straining on the eyes.  However, I have not had any success enlarging the text in my blog.  I have gone into the blog manager, highlighted the text and increased the font size, however it does not save the changes and part of the text looks like it has 1.5 line spacing and other parts looks like it has 1 line spacing. 
I have spoken to my tutor (Jenni Parker) about this as I would like to fix it and she has suggested going onto the HTML button and entering <P> at the beginning of the text and </P> at the end of the text.  By doing this hopefully I am able to get all the line spacing right.