Typographic inconsistencies with GOV.UK elements

[dashouse]

Looks to me as if the font sizes are a little bit different from GOV.UK Elements

Headings (Elements): 48 / 36 / 24 / 19
Headings (Product page example computed): 48 / 38 / 28.5 / 22.23

There are also some examples in the prototype of where the .heading-medium (etc) classes from GOV.UK Elements come in useful in regards to margins. Below is (roughly) the same markup with the right using a .heading-medium class which applies the larger margins.

(Low priority, just to bring in-line)