@font-face {
    font-family: 'CSChatThaiUI';
    src: url('CSChatThaiUI.eot?#iefix') format('embedded-opentype'),
         url('CSChatThaiUI.woff') format('woff'), 
         url('CSChatThaiUI.ttf') format('truetype');
    font-style: normal;
    font-weight: 400;
}