alice-in-metamorpov/through-the-looking-glass/poems/365-minus-1.typ

#let poem(content) = {
  set par(first-line-indent: 0em)

  align(center, block[
    #set align(right)
    #set block(breakable: false)
    #content
  ])
}

#poem[
  #block[
    #table(
      stroke: none,
      columns: (auto),
      [365],
      [--#h(1em)1],
      table.hline(),
      [364]
    )
  ]
]