@font-face {
    font-family: 'Roboto Black';
    src: url('https://yensaonhannghia.com/wp-content/themes/tailor-stylist/font/Roboto-Black.woff');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Roboto Black';
    src: url('https://yensaonhannghia.com/wp-content/themes/tailor-stylist/font/Roboto-Black.woff');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

 h1, h2, h3, h4, h5, h6 Roboto Black 
font-family: "Roboto Black " !important; 
}