竹笋炒肉: Hedong's Blog

Font rules

1)Font Family Matching
(1)Font Family: a collection of font faces given a common name
(2)Font Face: a variant on the default font in the font family
(3)Matching Order: font family-->font face-->character
(4)CSS 2.0 rules for advanced handling of font family matching

• Intelligent font matching , depending on font descriptors such as glyph widths and x-height
• Font downloading, from a font resources
• Font synthesis

2)Font Face Matching
(1)Match the faces declared in font-style
(2)Declared in font-variant
(3)Matches the font-weight
(4)Matches the font-size
3)Font Weight Matching
(1)Property "font-weight" can accept nine weights, from 100 to 900

• a)"normal" corresponds to 400, "fold" to 700
• b)Medium/Book/Normal/Roman/Regular to 500

(2)If font contains fewer than 9 weights, gaps be filled

• a)Unsigned 500, use 400;
• b)Unsigned 600,700 or 800, use a darker one, then the next light one,
• c)Unsigned 100,200 or 300, use a lighter one, then the next dark one.

(3)The majority of fonts will have at least 2 faces: normal(400) and bold(700)

参考资料：
Eric Meyer , CSS 2.0 Programmer's Reference

Posted by Hilton at July 14, 2004 05:24 PM | TrackBack