layout...tlr.css (riga 1)
#mainbox1 {
border-bottom: 1px solid #CCCCCC; ---> METTI A 0 PX
float: left;
margin: 0 9px 10px 0;
padding: 0;
text-align: left;
width: 281px;
#mainbox2 {
border-bottom: 1px solid #CCCCCC; --> METTI A 0 PX!
float: left;
margin: 0 0 10px;
padding: 0;
width: 281px;