@font-face {
    font-family: 'IBM Plex Sans Thai';
    src: url('IBMPlexSansThai-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    unicode-range: U+0E00-0E7F;
}

@font-face {
    font-family: 'IBM Plex Sans Thai';
    src: url('IBMPlexSansThai-Bold.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
    unicode-range: U+0E00-0E7F;
}

body :lang(th) {
    font-family: 'IBM Plex Sans Thai', sans-serif;
}