@font-face {
[ font-family: ; ] ||
[ src: [ [ format(#) ]? | ]#; ] ||
[ unicode-range: #; ] ||
[ font-variant: ; ] ||
[ font-feature-settings: normal | #; ] ||
[ font-variation-settings: normal | [ ] # ||
[ font-stretch: ; ] ||
[ font-weight: ; ] ||
[ font-style: