Horizontally align something with something
// author: tabiasgeehuman
#let inline-with(select, content) = context {
let target = query(
selector(select)
).last().location().position().x
let current = here().position().x
box(inset: (x: target - current + 0.3em), content)
}
#let inline-label(name) = [#line(length: 0%) #name]
#inline-with(selector(<start-c>))[= Common values]
#align(left, box[$
#inline-label(<start-c>) "Circles"(0) =& 0 \
lim_(x -> 1) "Circles"(0) =& 0
$])