You can access the long-s in HTML by using ſ (assuming it's supported by the active font). Alas, the Unicode format specifies places for long-s, long-s-t ligature and short-s-t ligature, but none of the other long-s ligatures or the c-t ligature. Grrr.
One of these days, I'll rework my fonts to use the Unicode special-use area rather than coöpting characters from the ISO Latin-1 area...
|