Fix for text indent and font size.

Update to add in px to the text-indents so that they work. Also the size parameter of the font tag only has a range of 1-7, so do a little math to correlate our default range of 8-30 to the 1-7 range.
Merge pull request #13 from jvanmetre/<html>-font-size-and-margins

Fix for text indent and font size.