Edit in JSFiddle

 $('#tweets').tweets({
           tweets:4,
           username: "jquery"
  });

<ul id="tweets"> 
</ul> 

#tweets { 
    background:#FAFAFA;
    border:1px solid #e4e4e4;
    margin:0; 
    padding:0;
}
#tweets li {
    border-bottom:1px dotted #CCC;
    list-style:none;
    padding:5px;
}

#tweets li:last-child { 
    border:0; 
}