This commit includes some general improvements to heading styles
(font-weight, margin/padding). It also adds a horizontal separator above
`<h2>` headings to segment important sections more easily.
(As a consequence, we can remove several `<hr />` elements right before
`<h2>` headings.)
Co-authored-by: Stefanie Fluin <sjtrimble@gmail.com>
PR Close#40427
Reference #33259
Removes figures elements as AIO is not typically using captions or image groups where figures would be necessary or appropriate
PR Close#33748
PR#28396 originally addressed an update via issue #23983 to make images more visible with a white background (implementation of gray "lightbox").
This PR implements those styles defined in PR#28396.
PR Close#33259
Teri Glover
George Kalpakas
Aristeidis Bampakos
Judy Bogart
Stefanie Fluin
Kapunahele Wong
Daniel Lewis BSc (Hons)
jenniferfell
William Marques
Trotyl