Removed widget_item class

IPython/html/static/notebook/js/widgets/bool.js

@@ -10,7 +10,6 @@ require(["notebook/js/widget"], function(){
         render : function(){
             this.$el
                 .html('')
-                .addClass('widget_item')
                 .addClass(this.model.comm.comm_id);
 
             var $label = $('<label />')
@@ -20,7 +19,6 @@ require(["notebook/js/widget"], function(){
                 .attr('type', 'checkbox')
                 .appendTo($label);
             this.$checkbox_label = $('<div />')
-                .addClass('widget_item')
                 .appendTo($label);
 
             this.update(); // Set defaults.

IPython/html/static/notebook/js/widgets/selection.js

@@ -9,7 +9,6 @@ require(["notebook/js/widget"], function(){
             
             this.$el
                 .html('')
-                .addClass('widget_item')
                 .addClass(this.model.comm.comm_id);
             this.$buttongroup = $('<div />')
                                 .addClass('widget_item')
@@ -74,7 +73,6 @@ require(["notebook/js/widget"], function(){
         render : function(){
             this.$el
                 .html('')
-                .addClass('widget_item')
                 .addClass(this.model.comm.comm_id);
             this.update();
         },
@@ -140,10 +138,8 @@ require(["notebook/js/widget"], function(){
         render : function(){
             this.$el
                 .html('')
-                .addClass('widget_item')
                 .addClass(this.model.comm.comm_id);
             this.$buttongroup = $('<div />')
-                .addClass('widget_item')
                 .addClass('btn-group')
                 .attr('data-toggle', 'buttons-radio')
                 .appendTo(this.$el);

IPython/html/static/notebook/js/widgets/string.js

@@ -7,7 +7,6 @@ require(["notebook/js/widget"], function(){
         // Called when view is rendered.
         render : function(){
             this.$el = $('<div />')
-                .addClass('widget_item')
                 .addClass(this.model.comm.comm_id);
             this.update(); // Set defaults.
         },
@@ -28,7 +27,6 @@ require(["notebook/js/widget"], function(){
         render : function(){
             this.$el
                 .html('')
-                .addClass('widget_item')
                 .addClass(this.model.comm.comm_id);
             this.$textbox = $('<textarea />')
                 .attr('rows', 5)
@@ -65,7 +63,6 @@ require(["notebook/js/widget"], function(){
         render : function(){
             this.$el
                 .html('')
-                .addClass('widget_item')
                 .addClass(this.model.comm.comm_id);
             this.$textbox = $('<input type="text" />')
                 .addClass('input')