| Name | Values | Initial value | 
| 'ascent'
 | <number>
 | undefined
 | 
| 'baseline'
 | <number>
 | 0
 | 
| 'bbox'
 | <number>, <number>, <number>, <number>
 | undefined
 | 
| 'cap-height'
 | <number>
 | undefined
 | 
| 'centerline'
 | <number>
 | undefined
 | 
| 'definition-src'
 | <uri>
 | undefined
 | 
| 'descent'
 | <number>
 | undefined
 | 
| 'font-family'
 | [ <family-name>  | <generic-family>  ] [, [<family-name>  | <generic-family>  ]]*
 | depends on user agent
 | 
| 'font-size'
 | all | <length> [, <length>]*
 | all
 | 
| 'font-stretch'
 | all | [ normal | ultra-condensed | extra-condensed | condensed | semi-condensed  | semi-expanded | expanded | extra-expanded |     ultra-expanded ] [, [ normal | ultra-condensed | extra-condensed | condensed | semi-condensed  | semi-expanded | expanded | extra-expanded |     ultra-expanded] ]*
 | normal
 | 
| 'font-style'
 | all | [ normal | italic | oblique ] [, [normal | italic | oblique] ]*
 | all
 | 
| 'font-variant'
 | [normal | small-caps] [,[normal | small-caps]]*
 | normal
 | 
| 'font-weight'
 | all | [normal | bold | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900] [, [normal | bold | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900]]*
 | all
 | 
| 'mathline'
 | <number>
 | undefined
 | 
| 'panose-1'
 | [<integer>]{10}
 | 0 0 0 0 0 0 0 0 0 0
 | 
| 'slope'
 | <number>
 | 0
 | 
| 'src'
 | [ <uri> [format(<string> [, <string>]*)] | <font-face-name>  ] [, <uri> [format(<string> [, <string>]*)] | <font-face-name> ]*
 | undefined
 | 
| 'stemh'
 | <number>
 | undefined
 | 
| 'stemv'
 | <number>
 | undefined
 | 
| 'topline'
 | <number>
 | undefined
 | 
| 'unicode-range'
 | <urange> [, <urange>]*
 | U+0-7FFFFFFF
 | 
| 'units-per-em'
 | <number>
 | undefined
 | 
| 'widths'
 | [<urange> ]? [<number> ]+ [,[<urange> ]? <number> ]+]
 | undefined
 | 
| 'x-height'
 | <number>
 | undefined
 |