facebook-like selection style

gistfile1.txt

            %form.form-horizontal{method:'post'}
                %fieldset
                    %legend Select Users to Assign
                    .control-group
                        %label.control-label
                            These users or groups
                        .controls
                            .tokenizer
                                .tokenarea
                                    %span.label.label-info.removeable.token{title:'Yippie'}
                                        Yippie
                                        %button.close{data-dismiss:'alert'} ×
                                    %span.label.label-info.removeable.token{title:'Foo Bar'}
                                        Foo Bar
                                        %button.close{data-dismiss:'alert'} ×
                                .wrap
                                    %input.inputtext{type:'text',placeholder:'Type here'}