.treeview .row-container {
    display:table; 
    width:100%; 
    border-bottom: 1px dotted #d6d6d6;
}
.treeview .row-container .treeview-row{
    display:table-row;
}
.treeview .row-container .treeview-row.disabled{
    color: #dddddd;
}
.treeview .row-container .treeview-row .checkarea {
    display:table-cell;
}
.treeview .row-container .treeview-row .button-group {
    display:table-cell; 
    text-align:right; 
    position: relative; 
    width:150px;
}