Hi yall,
I'm new here, so please be patient with me...
Frankly i am quite ignorant about CSS and HTML, but i am learning...
i just realized that i could edit mobi and epub files, and that excites me greatly.
i have just entered my CSS sheet from one of the posts here

I am 63 years old, majored in math at Purdue and have played guitar for 53 years....if anyone has questions about music theory or math in general please Hit Me up
thanks in advance for being here and loving Calibre
THX-1138