@font-face {
    font-family: 'OPPOSans';
    src:url('../fonts/OPPOSans-Regular.ttf') format('truetype');
    font-weight: normal;   /*400*/
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'OPPOSans';
    src:url('../fonts/OPPOSans-Medium.ttf') format('truetype');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'OPPOSans';
    src:url('../fonts/OPPOSans-Bold.ttf') format('truetype');
    font-weight: bold;  /*700*/
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Oswald';
    src: url('../fonts/Oswald-Bold.woff') format('truetype');
    font-weight: bold;
    font-style: italic;
    font-display: swap;
}