style.css

 @import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+Thai&display=swap');
 html, body, [class*="css"] {
    /* transition: all .5s; */
    font-family: 'IBM Plex Sans Thai', sans-serif;
    /* font-size: 18px;
    font-weight: 500;
    color: #091747; */
}