From the document
Change H1 settings as recommended
h1: font-size: 22pt, border-bottom: 3px solid #18A303; margin-bottom: 10px
File to touch:
Adolfo Jayme Barrientos committed a patch related to this issue.
It has been pushed to "master":
tdf#112754 Enlarge H1, make its fonts thinner & increase margin-bottom
I complied, but with a couple of tweaks:
• 22-px bold looked too large to me, so I’ve added “font-weight: 300”
• I noticed the margin-bottom rule was duplicated unnecessarily, so I’ve settled
on 8 px for its global value.
We should consider making this change to the offline help CSS files as well.