@font-face {
    font-family: 'Open Sans';
    src: url(OpenSans-Regular.ttf);
}
@font-face {
    font-family: 'Open Sans';
    font-style: italic;
    src: url(OpenSans-Italic.ttf);
}
@font-face {
    font-family: 'Open Sans';
    font-weight: bold;
    src: url(OpenSans-Semibold.ttf);
}
@font-face {
    font-family: 'Open Sans';
    font-style: italic;
    font-weight: bold;
    src: url(OpenSans-SemiboldItalic.ttf);
}