--- a/src/pyams_skin/resources/less/menus.less	Thu Oct 18 08:45:23 2018 +0200
+++ b/src/pyams_skin/resources/less/menus.less	Thu Oct 18 14:51:48 2018 +0200
@@ -119,6 +119,7 @@
 						&.active {
 							cursor: default;
 							background-color: @navSubMenuActiveLinkBgColor;
+							transition: background-color ease 2s;
 						}
 					}
 				}
@@ -166,6 +167,7 @@
 						margin-left: 30px;
 						padding-left: 12px;
 						background-color: @navSubMenuActiveLinkBgColor;
+						transition: background-color ease 2s;
 
 						.minified & {
 							margin-left: 0;
@@ -237,6 +239,14 @@
 					background-color: @navLinkActiveColor;
 				}
 			}
+			&.active {
+				>a {
+					.minified & {
+						background-color: @navSubMenuActiveLinkBgColor;
+						transition: background-color ease 2s;
+					}
+				}
+			}
 			>a {
 				>.badge.pull-right {
 					margin-right: 15px;