standaard lettergrootte		MSIE 6.0 (st.) MOZ 1.0+ NN 6.0+ OP7.0+ (st.)	MSIE 4.0/5.5 MSIE 6.0 (quirks) OP 4.0/6.0 OP7.0+ (quirks)	NN 4.x
xx-small	px	9px	10px	9px
x-small	px	10px	13px	10px
small	px	13px	16px	13px
medium	px	16px	18px	16px
large	px	18px	24px	24px
x-large	px	24px	32px	36px
xx-large	px	32px	50px	54px