@font-face{
    font-family: 'Bold';
    src : url('Open Sans Bold.ttf');
    font-weight: normal;
    font-style: normal;
}
@font-face{
    font-family: 'Open Sans';
    src : url('Open Sans.ttf');
    font-weight: normal;
    font-style: normal;
}

@font-face{
    font-family: 'Medium';
    src : url('SourceHanSansCN-Medium_0.otf');
    font-weight: normal;
    font-style: normal;
}
@font-face{
    font-family: 'Normal';
    src : url('SourceHanSansCN-Normal_0.otf');
    font-weight: normal;
    font-style: normal;
}