#set page(width: 160pt)
#set text(size: 8pt)

#let try(top, bottom) = rect(inset: 0pt, fill: green)[
  #set text(font: "IBM Plex Mono", top-edge: top, bottom-edge: bottom)
  From #top to #bottom
]

#try("ascender", "descender")
#try("ascender", "baseline")
#try("cap-height", "baseline")
#try("x-height", "baseline")
#try(4pt, -2pt)
#try(1pt + 0.3em, -0.15em)