Font Colour

Is it possible to overide the default style for one element of a form. For example i would like to change some elements of the following style rule for a specific form

.frm_style_formidable-style.with_frm_style .frm_primary_label {
font-family:”Lucida Grande”,”Lucida Sans Unicode”,Tahoma,sans-serif;
font-size:14px;
color:#444444;
font-weight:bold;
text-align:left;
margin:0;
padding:0 0 3px 0;
width:auto;
display:block;
}