Absolute

xx-small text sample
x-small text sample
small text sample
medium text sample
large text sample
x-large text sample
xx-large text sample

Percentage

75% text sample
85% text sample
100% text sample
125% text sample
150% text sample
200% text sample

Ems

.75 em text sample
.85 em text sample
1 em text sample
1.25 em text sample
1.5 em text sample
2 em text sample

Pixels

10 px text sample
14 px text sample
18 px text sample
20 px text sample
24 px text sample
30 px text sample