// Ends paragraphs.
Tightly #v(-5pt) packed

// Eating up soft spacing.
Inv #h(0pt) isible

// Multiple spacings in a row.
Add #h(10pt) #h(10pt) up

// Relative to font size.
Relative #h(100%) spacing

// Missing spacing.
// Error: 12 missing argument: spacing
Totally #h() ignored

// Swapped axes.
#page(main-dir: rtl, cross-dir: ttb, height: 80pt)[
    1 #h(1cm) 2

    3 #v(1cm) 4 #v(-1cm) 5
]