pre {
font-family : Arial, Helvetica, sans-serif; 
font-size : 16px; 
font-style : normal; 
color : #000000; 
} 

.fb_header {
margin: 0;
background-color: #9999CC;
color: white;
font-weight: bold;
padding: 5px;
}

.fb_iframe_widget {
border: 1px solid black;
padding: 1em;
}

.fb_iframe_widget span {
border-top: 1px solid black:
margin: 1em;
}