#ldapAdmin div.scroll {   
    height: 600px;
    overflow-x: hidden;
    overflow-y: auto;
    text-align: center;    
    margin: 20px;
}
#ldapAdmin .select2-container {
    width: 200px;
}
#ldapAdmin .select2-container--default {    
    min-width: 200px;
}