diff --git a/django_hstore/static/admin/css/django-hstore-widget.css b/django_hstore/static/admin/css/django-hstore-widget.css
deleted file mode 100755
index 0931081..0000000
--- a/django_hstore/static/admin/css/django-hstore-widget.css
+++ /dev/null
@@ -1,4 +0,0 @@
-.grp-tools li a.hstore-remove-handler{ background-position: 0 -3003px }
-.grp-tools li a.hstore-remove-handler:hover{ background-position: 0 -3047px }
-.grp-tools li a.hstore-add-handler { background-position: 0 -2563px }
-.grp-tools li a.hstore-add-handler:hover { background-position: 0 -2959px }
diff --git a/django_hstore/templates/hstore_grappelli_widget.html b/django_hstore/templates/hstore_grappelli_widget.html
index 677af66..ea1a1ea 100755
--- a/django_hstore/templates/hstore_grappelli_widget.html
+++ b/django_hstore/templates/hstore_grappelli_widget.html
@@ -11,7 +11,7 @@
                    placeholder="{% trans 'value' %}">
 
             <ul class="grp-tools" style="float:left;position:static;margin:0 0 0 15px">
-                <li><a href="#" class="icons-sprite hstore-remove-handler remove-row" title="{% trans 'remove row' %}"></a></li>
+                <li><a href="#" class="grp-icon grp-remove-handler remove-row" title="{% trans 'remove row' %}"></a></li>
             </ul>
         </div>
     </div>
@@ -23,7 +23,7 @@ <h2><%= label %></h2>
 
         <ul class="grp-tools">
             <li><a href="#" class="grp-text hstore-toggle-txtarea">{% trans 'toggle textarea' %}</a></li>
-            <li class="hs-add-row"><a href="#" class="icons-sprite hstore-add-handler"></a></li>
+            <li class="hs-add-row"><a href="#" class="grp-icon grp-add-handler" title="{% trans "Add row" %}"></a></li>
         </ul>
 
         <% if(help && help != '') { %>
diff --git a/django_hstore/widgets.py b/django_hstore/widgets.py
index 96b11cc..8163dcc 100755
--- a/django_hstore/widgets.py
+++ b/django_hstore/widgets.py
@@ -19,7 +19,7 @@ class BaseAdminHStoreWidget(AdminTextareaWidget):
     Base admin widget class for default-admin and grappelli-admin widgets
     """
     admin_style = 'default'
-    
+
     @property
     def media(self):
         # load underscore from CDNJS (popular javascript content delivery network)
@@ -33,11 +33,7 @@ def media(self):
 
         js = external_js + [static("admin/js/%s" % path) for path in internal_js]
 
-        css = {
-            'all': [static("admin/css/django-hstore-widget.css")]
-        }
-
-        return forms.Media(js=js, css=css)
+        return forms.Media(js=js)
 
     def render(self, name, value, attrs=None):
         if attrs is None: