[Feature Request] Adjust line height and letter spacing

[KiligFei]

Feature Description

Hello,

I want to be able to adjust the line height and spacing of the page, not just the H tag

I'm not sure if this is a reasonable request, but it's exactly what I'm looking for.

Thank you

Additional context

[dhry]

Seconding this request.

[DudeThatsErin]

What do you mean by this? I don't understand.