font-size
example
abcdefghijklmnopqrstuvwxyz—xx-small
abcdefghijklmnopqrstuvwxyz—x-small
abcdefghijklmnopqrstuvwxyz—small
abcdefghijklmnopqrstuvwxyz—medium
abcdefghijklmnopqrstuvwxyz—large
abcdefghijklmnopqrstuvwxyz—x-large
abcdefghijklmnopqrstuvwxyz—xx-large
abcdefghijklmnopqrstuvwxyz—xx-small
abcdefghijklmnopqrstuvwxyz—x-small
abcdefghijklmnopqrstuvwxyz—small
abcdefghijklmnopqrstuvwxyz—medium
abcdefghijklmnopqrstuvwxyz—large
abcdefghijklmnopqrstuvwxyz—x-large
abcdefghijklmnopqrstuvwxyz—xx-large