Hi, does the WRT environment support embedded fonts?

I have tried the following in my css and it does not appear to be working (of course with the appropriate .otf files included in the widget):

Code:
@font-face {
	font-family: Default;
	src: url('font/MyriadPro-Regular.otf');
}
@font-face {
	font-family: Default;
	font-weight: bold;
	src: url('font/MyriadPro-Bold.otf');
}

body {
	font-family: 	Default, Helvetica;
}
Thanks.