So with each increment on <h> the text gets smaller?

Question

Font size

Answer 1

Yes, h1 is the biggest and h6 the smallest heading

Answer 2

<h1> is the biggest and <h6> the smallest... until you change the default styles ^^

Anyway, <h1> is always heading with most importance, <h6> with lesser ;P

Answer 3

Thanks @TheCodingSloth