| Name | Values | Initial value |
|---|---|---|
| 'ascent' | <number> | undefined |
| 'baseline' | <number> | 0 |
| '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-style' | [ normal | italic | oblique ] [, [normal | italic | oblique] ]* | normal |
| '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]]* | normal |
| 'mathline' | <number> | undefined |
| 'panose-1' | [<number>]{10} | 0 0 0 0 0 0 0 0 0 0 |
| 'slope' | <number> | 0 |
| 'src' | [ <uri> [format [,format]*]? | <font-face-name> ] [, <uri> [format [,format]*]?] | <font-face-name> ]* | undefined |
| 'stemh' | <number> | undefined |
| 'stemv' | <number> | undefined |
| 'topline' | <number> | undefined |
| 'unicode-range' | <urange>+ | U+0-7FFFFFFF |
| 'units-per-em' | <number> | undefined |
| 'widths' | [<urange> ]? [<number> ]+ [,[<urange> ]? <number> ]+] | undefined |
| 'x-height' | <number> | undefined |