FUNCTION

The semicolon is used as a separation symbol in a sentence between two independent sections. It is also used at the end of different points of a list, ended by a period.

DESIGN

The semicolon has a period at the top (aligned below the x-height) and a comma on the bottom (like the comma), the two elements are vertically aligned.

TYPOGRAPHY RULES

There is no space before the semicolon, except in French, where there is a non-breaking thin space.