@font-face
{   /* for IE */
    font-family:MyriadProRegular;
    src: url(MyriadPro-Regular.eot);
}

@font-face
{   /* for non-IE */
    font-family:MyriadProRegular;
    src:url(//:) format("No-IE-404"),url(MyriadPro-Regular.ttf) format("truetype");
}