grazie per la risposta
ecco il css

.latestarticle {
border: 5px solid #999;
width:695px;
position: relative;
/*background-color:#ffffff;*/
padding:7px;
overflow:hidden;

.article {float: left;
width:219px;
background-color:transparent;
padding:10px;
border-top:solid 1px #e7e7e7;
}