#menu { 
    float: left; 
    margin-right: 5px; 
} 

#menu a { 
    display: inline-block; 
    text-decoration: none; 
    color: #369; 
    padding: 1px;
    border-left: 6px solid #CCCCCC; 
    margin-right: 20px; 
} 

#menu a:hover { 
    color: #6FA7D1; 
    border-left: 10px solid #FF0000; 
}