diff --git a/e107_themes/bootstrap3/admin_style.css b/e107_themes/bootstrap3/admin_style.css
index a91f49c92..ecbe37819 100644
--- a/e107_themes/bootstrap3/admin_style.css
+++ b/e107_themes/bootstrap3/admin_style.css
@@ -259,16 +259,25 @@ img.image-selector							{ margin-bottom:0px; }
 .dropdown-menu i,
 .dropdown-menu img 							{ padding: 0px 0px; margin-right: 10px; }
 
-.nav ul li ul.dropdown-menu > li a img,
-.nav ul li ul.dropdown-menu > li a i		{
-						       					filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale"); /* Firefox 10+, Firefox on Android */
-						       					filter: gray; /* IE6-9 */
-						       					-webkit-filter: grayscale(100%); /* Chrome 19+, Safari 6+, Safari 6+ iOS */
+ul.navbar-nav li ul.dropdown-menu > li a img,
+ul.navbar-nav li ul.dropdown-menu > li a i		{
+            			       				-webkit-filter: grayscale(100%);
+                                            -moz-filter: grayscale(100%);
+                                            -ms-filter: grayscale(100%);
+                                            -o-filter: grayscale(100%);
+                                            filter: grayscale(100%);
+                                            filter: gray; /* IE 6-9 */
 											}
 
-.nav ul li ul.dropdown-menu a:hover i,
-.nav ul li ul.dropdown-menu a:hover img
-											{ filter: none;   -webkit-filter: grayscale(0%); }
+ul.navbar-nav li ul.dropdown-menu a:hover i,
+ul.navbar-nav li ul.dropdown-menu a:hover img
+											{
+											filter: none;
+											 -webkit-filter: none;
+                                            -moz-filter: none;
+                                            -ms-filter: none;
+                                            -o-filter: none;
+										     }
 
 td.options 									{ 	}