diff --git a/contacts/templates/contacts/contact_list.html b/contacts/templates/contacts/contact_list.html
index 51b6dc3985..aaf0b7bdf6 100644
--- a/contacts/templates/contacts/contact_list.html
+++ b/contacts/templates/contacts/contact_list.html
@@ -5,7 +5,7 @@
 
 {% block left_panel %}
 <div class="info-item">
-<h3 class="info-item-top bulb-tips">小提示</h3>
+<h3 class="info-item-top">小提示</h3>
 <p class="info-item-bottom">在共享和发送外链的时候，系统会自动记录下您用过的通讯地址，以方便下次使用。</p>
 </div>
 
diff --git a/group/templates/group/groups_left_panel.html b/group/templates/group/groups_left_panel.html
index 9934abe128..eb34c1980e 100644
--- a/group/templates/group/groups_left_panel.html
+++ b/group/templates/group/groups_left_panel.html
@@ -1,5 +1,5 @@
 <div class="info-item">
-    <h3 class="info-item-top bulb-tips">小提示</h3>
+    <h3 class="info-item-top">小提示</h3>
     <div class="info-item-bottom">
         <p class="not-last">群组创建后，就可以往里面共享资料，邀请他人一起来协同维护这些资料。</p>
         <p>您也可以共享资料到您没有参加的群组，相当于邮件的抄送功能。</p>
diff --git a/media/css/seahub.css b/media/css/seahub.css
index 2036ddad35..c6380f19bf 100644
--- a/media/css/seahub.css
+++ b/media/css/seahub.css
@@ -1329,9 +1329,4 @@ ul.with-bg li {
     top:-15px;
     left:-14px;
 }
-.bulb-tips {
-    background-image: url('../img/bulb_yellow.png');
-    background-repeat: no-repeat;
-    background-position: left center;
-    padding-left: 25px;
-}
+
diff --git a/templates/public_home.html b/templates/public_home.html
index e9d36b4072..7a9bf7f929 100644
--- a/templates/public_home.html
+++ b/templates/public_home.html
@@ -6,7 +6,7 @@
 
 {% block left_panel %}
 <div class="info-item">
-<h3 class="info-item-top bulb-tips">小提示</h3>
+<h3 class="info-item-top">小提示</h3>
 <p class="info-item-bottom">标记为只读的资料库只能查看，无法整个下载。</p>
 </div>
 {% endblock %}