<style type="text/css">
@font-face 
{
    font-family: 'Sarabun', sans-serif;
}
body{
    font-family: 'Sarabun', sans-serif;
    background-image: url(imgetc/bg-02.jpg);
    background-size:100%;
    background-repeat: no-repeat;
    background-attachment: fixed;
}
.bi::before {
    display: inline-block;
    content: "";
    background-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path fill='none' stroke='%23333' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M5 14l6-6-6-6'/></svg>");
    background-repeat: no-repeat;
    background-size: 1rem 1rem;
}

</style>