betaflight-configurator/css/opensans_webfontkit/fonts.css

/* Definition of Fonts */

@font-face {
    font-family: 'open_sanssemibold';
    src: url('opensans-semibold-webfont.eot');
    src: url('opensans-semibold-webfont.eot?#iefix') format('embedded-opentype'),
         url('opensans-semibold-webfont.woff2') format('woff2'),
         url('opensans-semibold-webfont.woff') format('woff'),
         url('opensans-semibold-webfont.ttf') format('truetype'),
         url('opensans-semibold-webfont.svg#open_sanssemibold') format('svg');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'open_sansregular';
    src: url('opensans-regular-webfont.eot');
    src: url('opensans-regular-webfont.eot?#iefix') format('embedded-opentype'),
         url('opensans-regular-webfont.woff2') format('woff2'),
         url('opensans-regular-webfont.woff') format('woff'),
         url('opensans-regular-webfont.ttf') format('truetype'),
         url('opensans-regular-webfont.svg#open_sansregular') format('svg');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'open_sanslight';
    src: url('opensans-light-webfont.eot');
    src: url('opensans-light-webfont.eot?#iefix') format('embedded-opentype'),
         url('opensans-light-webfont.woff2') format('woff2'),
         url('opensans-light-webfont.woff') format('woff'),
         url('opensans-light-webfont.ttf') format('truetype'),
         url('opensans-light-webfont.svg#open_sanslight') format('svg');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'open_sansitalic';
    src: url('opensans-italic-webfont.eot');
    src: url('opensans-italic-webfont.eot?#iefix') format('embedded-opentype'),
         url('opensans-italic-webfont.woff2') format('woff2'),
         url('opensans-italic-webfont.woff') format('woff'),
         url('opensans-italic-webfont.ttf') format('truetype'),
         url('opensans-italic-webfont.svg#open_sansitalic') format('svg');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'open_sansbold_italic';
    src: url('opensans-bolditalic-webfont.eot');
    src: url('opensans-bolditalic-webfont.eot?#iefix') format('embedded-opentype'),
         url('opensans-bolditalic-webfont.woff2') format('woff2'),
         url('opensans-bolditalic-webfont.woff') format('woff'),
         url('opensans-bolditalic-webfont.ttf') format('truetype'),
         url('opensans-bolditalic-webfont.svg#open_sansbold_italic') format('svg');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'open_sansbold';
    src: url('opensans-bold-webfont.eot');
    src: url('opensans-bold-webfont.eot?#iefix') format('embedded-opentype'),
         url('opensans-bold-webfont.woff2') format('woff2'),
         url('opensans-bold-webfont.woff') format('woff'),
         url('opensans-bold-webfont.ttf') format('truetype'),
         url('opensans-bold-webfont.svg#open_sansbold') format('svg');
    font-weight: normal;
    font-style: normal;
}

/* Fonts shouldn't be transformed by browser. 
Using specific fonts for bold, italic and bold_italic instead.*/

i {
    font-family: 'open_sansitalic';
    font-weight: normal;
    font-style: normal;
}

em {    
    font-family: 'open_sansitalic';
    font-style:normal;
    font-weight: normal;
}


em strong {    
    font-family: 'open_sansbold_italic';
    font-style:normal;
    font-weight: normal;
}

 strong em {    
    font-family: 'open_sansbold_italic';
    font-style:normal;
    font-weight: normal;
}

strong {
    font-family: 'open_sansbold';
    font-weight: normal;
    font-style: normal;
}

b {
    font-family: 'open_sansbold';
    font-weight: normal;
    font-style: normal;
}