diff --git a/templates/base/head_navbar.tmpl b/templates/base/head_navbar.tmpl
index 741bd567e..51761a7e5 100755
--- a/templates/base/head_navbar.tmpl
+++ b/templates/base/head_navbar.tmpl
@@ -34,7 +34,7 @@
 
 		<a class="item" href="{{AppSubUrl}}/explore/repos">{{.i18n.Tr "custom.head.project"}}</a>
 		<a class="item" href="{{AppSubUrl}}/explore/datasets">{{.i18n.Tr "custom.head.dataset"}}</a>
-		<div class="ui dropdown item" id='dropdown_explore'>
+		<div class="ui simple dropdown item" id='dropdown_explore'>
 			{{.i18n.Tr "explore"}}
 			<i class="dropdown icon"></i>
 			<div class="menu">
@@ -65,7 +65,7 @@
 
 		<a class="item" href="{{AppSubUrl}}/explore/repos">{{.i18n.Tr "custom.head.project"}}</a>
 		<a class="item" href="{{AppSubUrl}}/explore/datasets">{{.i18n.Tr "custom.head.dataset"}}</a>
-		<div class="ui dropdown item" id='dropdown_PageHome'>
+		<div class="ui simple dropdown item" id='dropdown_PageHome'>
 			{{.i18n.Tr "explore"}}
 			<i class="dropdown icon"></i>
 			<div class="menu" >
@@ -120,7 +120,7 @@
 				</span>
 			</a>
 
-			<div class="ui dropdown jump item poping up" data-content="{{.i18n.Tr "create_new"}}" data-variation="tiny inverted">
+			<div class="ui simple dropdown jump item poping up" data-content="{{.i18n.Tr "create_new"}}" data-variation="tiny inverted">
 				<span class="text">
 					<span class="fitted">{{svg "octicon-plus" 16}}</span>
 					<span class="sr-mobile-only">{{.i18n.Tr "create_new"}}</span>
@@ -141,7 +141,7 @@
 				</div><!-- end content create new menu -->
 			</div><!-- end dropdown menu create new -->
 
-			<div class="ui dropdown jump item poping up" tabindex="-1" data-content="{{.i18n.Tr "user_profile_and_more"}}" data-variation="tiny inverted">
+			<div class="ui simple dropdown jump item poping up" tabindex="-1" data-content="{{.i18n.Tr "user_profile_and_more"}}" data-variation="tiny inverted">
 				<span class="text">
 					<img class="ui tiny avatar image" width="24" height="24" src="{{.SignedUser.RelAvatarLink}}">
 					<span class="sr-only">{{.i18n.Tr "user_profile_and_more"}}</span>