How to create a block with centered and bold text without affecting global settings?

[vmartel08]

@ozzyc Just in case, you have seen this?

@vmartel08

Following:

@Andrew

Don’t use show rules unless you have to, especially if you put set rules inside. You will face Which show rule takes precedence? or Set rule inside show rule (closure) for the same element gets applied for table/grid · Issue #6219 · typst/typst · GitHub.

Prioritize show-set rules and keep show rules minimal/non-hacky

and with a bit of cleanup to reduce the usage of show rules (your should prioritize show-set rules):

#set heading(numbering: (first, ..nums) => numbering("1.", ..nums))
#show heading: smallcaps
#show heading: set align(left)
#show heading: set block(width: 100%)

#show heading.where(level: 1): set heading(numbering: none)
#show heading.where(level: 1): set align(center)
#show heading.where(level: 1): set text(
  size: 20pt,
  weight: "bold",
  //  font: ("Poppins","Noto Serif CJK SC"),
)

#show heading.where(level: 2): set block(below: 1.0em)
#show heading.where(level: 2): set text(
  size: 18pt,
  weight: "bold",
  //  font: ("Poppins","Noto Serif CJK SC"),
  fill: rgb("#045bac"),
)

#show heading.where(level: 3): set block(below: 1.2em)
#show heading.where(level: 3): set text(
  size: 14pt,
  weight: "regular",
  //  font: ("Poppins", "Noto Serif CJK SC"),
  fill: rgb("#062f56"),
)

as well as an even more cleaned up version in How can I prevent level 1 headings from being numbered? - #3 by Andrew