@font-face {
    font-family: 'SourceHanSerifCN-Regular';
    src: url('../fonts/SOURCEHANSERIFCN-REGULAR.ttf');
}
@font-face {
    font-family: 'SourceHanSerifCN-Medium';
    src: url('../fonts/SOURCEHANSERIFCN-MEDIUM.ttf');
}
@font-face {
    font-family: 'SourceHanSerifSC-Heavy';
    src: url('../fonts/SOURCEHANSERIFCN-HEAVY.ttf');
} 
/* 
@font-face {
    font-family: '';
    src: url('../fonts');
} 
*/