[css] Apply Calibri (Body) font to text

I have a div and in this div I want to display some text in Calibri (Body) font.

How can I do this?

This is the css I have been given :

.an_account_join_1 {
    float:left;
    width:100%;
    color:#000000;
    font-family:Calibri (Body);
    letter-spacing:2px;
    font-size:14px;
    text-align:center;
    margin:20px 0px;
    }   

This is the div:

<div class="an_account_join_1">Individual Free Membership</div>

There is no font style displayed with this font family.

When I look at the firebug output there is no style for font family.

There is no such font as “Calibri (Body)”. You probably saw this string in Microsoft Word font selection menu, but it’s not a font name (see e.g. the explanation Font: +body (in W07)).

So use just font-family: Calibri or, better, font-family: Calibri, sans-serif. (There is no adequate backup font for Calibri, but the odds are that when Calibri is not available, the browser’s default sans-serif font suits your design better than the browser’s default font, which is most often a serif font.)