Text formating from multiselect combobox (binding combobox to label) - [Fiddle]

Hi?

I want to format as a list, the text from a multiselect combobox displayed in a label.

Code:

   
 items: [{
            xtype:'form',
            title: 'Form',
            flex: 1.5,
            margin: '0 10 0 0',
     
        items:[{
            xtype: 'combobox',
            name:'itens',
            width:230,
            multiSelect : true,
            store: states,
            queryMode: 'local',
            displayField: 'value',
            valueField: 'value',
            bind:'{itens}',
            }]
                             
        }, {
            xtype:'form',
            title: 'Viewer',
            flex: 3,         
            margin: '0 10 0 0',
         
            items:[{
               xtype: 'label',                                                    
               bind:'<b>Itens: </b>{itens}</br></br>',   //I want to format this result like a list
            
             // xtype: 'displayfield',    
            //  bind:'<b>Itens: </b><ul><li>{itens}</li></ul></br></br>',                
                }]           
        }
    ]

Please, see my code in this fiddle:

http://ift.tt/1EtOoqg

I tried several approaches with css but without success.

I would appreciate suggestions.

Thanks in advance.

Text formating from multiselect combobox (binding combobox to label) - [Fiddle]