diff -r d50743e69693 -r 7f0d72e427b1 src/pyams_content/shared/site/zmi/folder.py
--- a/src/pyams_content/shared/site/zmi/folder.py	Thu Jul 12 17:35:51 2018 +0200
+++ b/src/pyams_content/shared/site/zmi/folder.py	Thu Jul 12 18:18:15 2018 +0200
@@ -102,8 +102,6 @@
         super(SiteFolderAddForm, self).updateWidgets(prefix)
         if 'parent' in self.widgets:
             self.widgets['parent'].permission = MANAGE_SITE_PERMISSION
-        if 'notepad' in self.widgets:
-            self.widgets['notepad'].widget_css_class = 'textarea'
 
     def create(self, data):
         registry = self.request.registry
@@ -192,13 +190,6 @@
     fields = field.Fields(ISiteFolder).select('title', 'short_name', 'heading', 'navigation_title', 'notepad') + \
              field.Fields(IBaseSharedTool).select('shared_content_workflow')
 
-    def updateWidgets(self, prefix=None):
-        super(SiteFolderPropertiesEditForm, self).updateWidgets(prefix)
-        if 'heading' in self.widgets:
-            self.widgets['heading'].widget_css_class = 'textarea'
-        if 'notepad' in self.widgets:
-            self.widgets['notepad'].widget_css_class = 'textarea'
-
 
 @view_config(name='properties.json', context=ISiteFolder, request_type=IPyAMSLayer,
              permission=MANAGE_TOOL_PERMISSION, renderer='json', xhr=True)