Template:Semisub/doc

Produces, by default, a subscript that's not as "low-slung" as the HTML &thinsp;: If two (unnamed) parameters supplied, the first is taken to be the amount by which the second is subscripted: If three (unnamed) parameters supplied, the third is the subscript, the second is taken to be a font-size and the first the amount by which it is to be subscripted: