课程大纲的内容图片自适应大小

app/views/syllabuses/show.html.erb

@@ -4,6 +4,7 @@
 <script type="text/javascript">
     $(function() {
         sd_create_editor_from_data(<%= @syllabus.id %>, null, "100%", "<%= @syllabus.class.to_s %>");
+        showNormalImage('syllabus_description_<%= @syllabus.id %>');
     });
 </script>
 <ul id="sy_tab_nav">
@@ -23,7 +24,7 @@
       <p class="sy_tab_con_p">该课程尚未填写课程大纲，敬请期待！</p>
   <% else %>
       <div class="sy_tab_con">
-        <div class="syllabuscon">
+        <div class="syllabuscon upload_img" id="syllabus_description_<%= @syllabus.id %>">
           <%=@syllabus.description.html_safe %>
           <div class="mt10" style="font-weight:normal;">
             <%= render :partial=>"attachments/activity_attach", :locals=>{:activity => @syllabus} %>