Further cleanup for celltoolbars.

IPython/frontend/html/notebook/static/css/celltoolbar.css

@@ -23,27 +23,25 b''
     display: block;
 }
 
-.ctb_wrapper{
+.ctb_hideshow {
     display: none;
 }
 
-.toolbaron .ctb_wrapper{
+.ctb_show.ctb_hideshow {
     display: block;
-    display: -webkit-box;
 }
 
-.toolbaron .ctb_wrapper + div > div.input_area,  
-.toolbaron .ctb_wrapper + div.text_cell_input{
+.ctb_show .ctb_hideshow + div > div.input_area,  
+.ctb_show .ctb_hideshow + div.text_cell_input {
     border-top-right-radius: 0px;
     border-top-left-radius: 0px;
 }
 
-.toolbaron > .celltoolbar {
+.ctb_show > .celltoolbar {
     border-bottom-right-radius: 0px;
     border-bottom-left-radius: 0px;
 }
 
-
 .button_container {
     float: right;
 }

IPython/frontend/html/notebook/static/js/celltoolbar.js

@@ -37,10 +37,12 b' var IPython = (function (IPython) {'
         this.inner_element = $('<div/>');
         var ctb_element = $('<div/>').addClass('celltoolbar')
             .append(this.inner_element);
-        this.element = $('<div/>').addClass('ctb_wrapper hbox');
         ctb_element.addClass('box-flex1');
+        var ctb_area = $('<div/>').addClass('ctb_area hbox');
         var ctb_prompt = $('<div/>').addClass('ctb_prompt prompt');
-        this.element.append(ctb_prompt).append(ctb_element);
+        ctb_area.append(ctb_prompt).append(ctb_element);
+        this.element = $('<div/>').addClass('ctb_hideshow')
+            .append(ctb_area);
     };
 
 
@@ -62,21 +64,21 b' var IPython = (function (IPython) {'
 
 
     CellToolbar.global_hide = function () {
-        $('body').removeClass('toolbaron');
+        $('body').removeClass('ctb_show');
     }
 
 
     CellToolbar.global_show = function () {
-       $('body').addClass('toolbaron');
+       $('body').addClass('ctb_show');
     }
     
     CellToolbar.prototype.hide = function () {
-        this.element.removeClass('toolbaron');
+        this.element.removeClass('ctb_show');
     }
 
 
     CellToolbar.prototype.show = function () {
-        this.element.addClass('toolbaron');
+        this.element.addClass('ctb_show');
     }
 
 

IPython/frontend/html/notebook/static/js/textcell.js

@@ -45,8 +45,10 b' var IPython = (function (IPython) {'
         IPython.Cell.prototype.create_element.apply(this, arguments);
         var cell = $("<div>").addClass('cell text_cell border-box-sizing vbox');
         cell.attr('tabindex','2');
+
         this.celltoolbar = new IPython.CellToolbar(this);
         cell.append(this.celltoolbar.element);
+
         var input_area = $('<div/>').addClass('text_cell_input border-box-sizing');
         this.code_mirror = CodeMirror(input_area.get(0), {
             indentUnit : 4,