Vertical spacing - <img id=arg src=sqr.gif> for h-lines

font-size:4mm, id=sstv
úúúúlllll Way too small.
font-size:5mm, id=sstv
úúúúlllll Too small.
font-size:6mm, id=sstv
úúúúlllll Still too small.
font-size:7mm, id=stv7
úúúúlllll Still small.
font-size:8mm, id=stv
úúúúlllll Not too small.
font-size:9mm, id=stv
úúúúlllll Not too small.
font-size:10mm, id=stv
úúúúlllll Not small.
font-size:11mm, id=stv
úúúúlllll Not small.
font-size:12mm, id=stv
úúúúlllllllll Getting large.
font-size:13mm, id=stv
úúúúlllllllll Getting larger.
font-size:14mm, id=stv14
úúúúlllllllll Still larger.
font-size:15mm, id=lstv
úúúúlllllllll Large.
font-size:16mm, id=lstv
úúúúlllllllll Large.