diff --git a/app/views/avatar/_new_avatar_form.html.erb b/app/views/avatar/_new_avatar_form.html.erb
index 9c8a63941..8ca08c766 100644
--- a/app/views/avatar/_new_avatar_form.html.erb
+++ b/app/views/avatar/_new_avatar_form.html.erb
@@ -2,9 +2,10 @@
   <%= image_tag(url_to_avatar(source), id: "avatar_image", :width =>"60", :height =>"60",:alt=>"上传图片")%>
 </a>
 <%#= link_to l(:button_delete_file),{:controller => :avatar,:action => :delete_image,:remote=>true,:source_type=> source.class,:source_id=>source.id},:confirm => l(:text_are_you_sure), :method => :post, :class => "upbtn fl" %>
+<a href="javascript:void(0)" class="upbtn fl">上传图片</a>
 <%= file_field_tag 'avatar[image]',
                    :id => nil,
-                   :class => 'upbtn',
+                   :class => 'upload_file ',
                    :size => "1",
                    :multiple => false,
                    :onchange => 'addInputAvatar(this);',
diff --git a/public/stylesheets/courses.css b/public/stylesheets/courses.css
index b00853980..7f37fd5d7 100644
--- a/public/stylesheets/courses.css
+++ b/public/stylesheets/courses.css
@@ -324,8 +324,9 @@ a:hover.st_add{ color:#ff8e15;}
 .courses_text{ border:1px solid #64bdd9; height:100px;width:532px; background:#fff; margin-left:5px; padding:5px; margin-bottom:10px;}
 .upimg{ border:1px solid  #eaeaea; display:block; width:60px; height:60px; padding:1px;}
 .upimg:hover{ border:1px solid #64bdd9; }
-.upbtn{ margin:42px 0 0 10px; border: none;}
-/*.upbtn:hover{border:1px solid #64bdd9; color:#64bdd9;}*/
+.upbtn{ margin:40px 0 0 15px; display:block; padding:2px 5px; border:1px solid #eaeaea;}
+.upbtn:hover{border:1px solid #64bdd9; color:#64bdd9;cursor: pointer;}
+.upload_file{margin-left: -60px;margin-top: 40px;width: 50px;position: absolute;height: 24px;opacity: 0;cursor: pointer}
 /* 功能倒计时*/
 .w_img{ float:left; margin:10px 10px 15px 0px;}
 .w_p{ float:left; color:#15bccf; font-size:16px; font-weight:bold; margin-top:70px; }
@@ -398,21 +399,21 @@ span.add_attachment {font-size: 80%;line-height: 2.5em;}
 */
 #cboxOverlay{background:#fff;}
 #colorbox{outline:0;}
-#cboxTopLeft{width:25px; height:25px; background:url(/images/colorbox/border1.png) no-repeat 0 0;}
-#cboxTopCenter{height:25px; background:url(/images/colorbox/border1.png) repeat-x 0 -50px;}
-#cboxTopRight{width:25px; height:25px; background:url(/images/colorbox/border1.png) no-repeat -25px 0;}
-#cboxBottomLeft{width:25px; height:25px; background:url(/images/colorbox/border1.png) no-repeat 0 -25px;}
-#cboxBottomCenter{height:25px; background:url(/images/colorbox/border1.png) repeat-x 0 -75px;}
-#cboxBottomRight{width:25px; height:25px; background:url(/images/colorbox/border1.png) no-repeat -25px -25px;}
-#cboxMiddleLeft{width:25px; background:url(/images/colorbox/border2.png) repeat-y 0 0;}
-#cboxMiddleRight{width:25px; background:url(/images/colorbox/border2.png) repeat-y -25px 0;}
+#cboxTopLeft{width:25px; height:25px; background:url(../images/colorbox/border1.png) no-repeat 0 0;}
+#cboxTopCenter{height:25px; background:url(../images/colorbox/border1.png) repeat-x 0 -50px;}
+#cboxTopRight{width:25px; height:25px; background:url(../images/colorbox/border1.png) no-repeat -25px 0;}
+#cboxBottomLeft{width:25px; height:25px; background:url(../images/colorbox/border1.png) no-repeat 0 -25px;}
+#cboxBottomCenter{height:25px; background:url(../images/colorbox/border1.png) repeat-x 0 -75px;}
+#cboxBottomRight{width:25px; height:25px; background:url(../images/colorbox/border1.png) no-repeat -25px -25px;}
+#cboxMiddleLeft{width:25px; background:url(../images/colorbox/border2.png) repeat-y 0 0;}
+#cboxMiddleRight{width:25px; background:url(../images/colorbox/border2.png) repeat-y -25px 0;}
 #cboxContent{background:#fff; overflow:hidden;}
 .cboxIframe{background:#fff;}
 #cboxError{padding:50px; border:1px solid #ccc;}
 #cboxLoadedContent{margin-bottom:20px;}
 #cboxTitle{position:absolute; bottom:0px; left:0; text-align:center; width:100%; color:#999;}
 #cboxCurrent{position:absolute; bottom:0px; left:100px; color:#999;}
-#cboxLoadingOverlay{background:#fff url(/images/colorbox/loading.gif) no-repeat 5px 5px;}
+#cboxLoadingOverlay{background:#fff url(../images/colorbox/loading.gif) no-repeat 5px 5px;}
 
 /* these elements are buttons, and may need to have additional styles reset to avoid unwanted base styles */
 #cboxPrevious, #cboxNext, #cboxSlideshow, #cboxClose {border:0; padding:0; margin:0; overflow:visible; width:auto; background:none; }
@@ -446,3 +447,5 @@ span.add_attachment {font-size: 80%;line-height: 2.5em;}
 
 
 
+
+