[michaelbr]

Originally Posted by theducks

You could make a style sheet entry to override the default heading sizes et al.

h1 {font-size: 24pt}

You can apply any valid attributes there. I prefer font-size: 200%
which is 200% of the body font

Thanks theducks, this is what I did:
- after opening Sigil with no book, I went to left side, right clicked Styles > Add New Item then add your code into the right side style sheet, the problem is whenever I close Sigil, the change is gone, is there anyway that I can save the style into Sigil, so every time I open Sigil or a new book, it'll be there?

Thanks