Font-size Defined in Units
px 16px Hello World!
pt 12pt Hello World!
in .16in Hello World!
cm .4cm Hello World!
mm 4mm Hello World!
pc 1pc Hello World!
em 1em Hello World!
ex 2ex Hello World!
% 100% Hello World!
Font-size Defined Relatively
xx-large Hello World! Hello World!
x-large Hello World! Hello World!
large Hello World! Hello World!
medium Hello World! Hello World!
small Hello World! Hello World!
x-small Hello World! Hello World!
xx-small Hello World! Hello World!
This text is smaller and even smaller and even smaller .
This text is larger and even larger and even larger .
Widths in Units
1 in
2.54cm
25.4mm
96px
72pt
6pc
6em
6ex