Flex 3 (with Flash Builder 4): font-family for button label CSS failed

Question

Hi all,

In my CSS, I have :

    @font-face
    {
 src:      url("//assets/style/schneider/fonts/arr_____.ttf"); 
 font-family:    "ArialRnd Normal";
 font-weight: normal;
 font-style: normal;
    }

    Button
    {
 fontFamily: "ArialRnd Normal";  
 fontSize:  14;
    }

But, it doesn't work ... already Time New Roman is used.

Please help me,

Thank you very much,

Regards,

Anthony