Question
Is it possible to make a table border ruling appear outside the cell?
I have a table styling with a thick rule at the top, but as the thick rule is placed inside the cell, it makes the vertical spacing appear inconsistent e.g 'GBP row below has less space above than the other currencies, due to the thick rule taking up the space above. Please don't suggest making the first row a header row and adding extra padding to that styling, that would involve completely re-writing the source data.

