diff --git a/app/views/boards/_course_show.html.erb b/app/views/boards/_course_show.html.erb
index 3e1530e3f..47de679c8 100644
--- a/app/views/boards/_course_show.html.erb
+++ b/app/views/boards/_course_show.html.erb
@@ -32,20 +32,20 @@
       <hr/>
     </div>
 <% end %>
-<p class="c_dark mb5">讨论区共有<span class="c_orange"><%= @topic_count %></span>个帖子</p>
+<p class="c_dark mb5 f14">讨论区共有<span class="c_orange"><%= @topic_count %></span>个帖子</p>
 <% if @topics.any? %>
     <% @topics.each do |topic| %>
         <div class="talkmain_box" style="border:none; margin-bottom:0; border-bottom: 1px dashed #d9d9d9;" id="topic<%= topic.id %>" nhname="container_board" mhname="container_board_reply">
           <%= link_to image_tag(url_to_avatar(topic.author), :width=>"42",:height=>"42"), user_path(topic.author),:class =>'talkmain_pic fl' %>
-          <div class="talkmain_txt fl mt5">
+          <div class="talkmain_txt fl mt5 f14">
             <% author = topic.author.to_s %>
             <div style="max-width:60px;white-space:nowrap;overflow:hidden;float:left;text-overflow:ellipsis;">
-              <%= link_to author, user_path(topic.author), :class =>"talkmain_name fl ",:title=>author,
+              <%= link_to author, user_path(topic.author), :class =>"talkmain_name fl f14",:title=>author,
                           :style=>'max-width:60px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;' %>
             </div>
             <p style="float:left;color:#ff5722;">&nbsp;&nbsp;:</p>
 
-            <p class="talkmain_tit fl fb break_word" title="<%=  h(topic.subject) %>" style="width:auto;float:left;max-width:415px;white-space:nowrap;overflow:hidden;float:left;text-overflow:ellipsis;">&nbsp;&nbsp;<%=  h(topic.subject) %></p>
+            <p class="talkmain_tit fl fb break_word f14" title="<%=  h(topic.subject) %>" style="width:auto;float:left;max-width:415px;white-space:nowrap;overflow:hidden;float:left;text-overflow:ellipsis;">&nbsp;&nbsp;<%=  h(topic.subject) %></p>
             <% if topic.course_editable_by?(User.current) %>
                 <a href="javascript:void(0)" nhname="showbtn"  style="color: #426e9a;float: right;
                         margin-right: 10px;"><%= l(:button_edit) %></a>
@@ -101,7 +101,7 @@
 //                }
               });
             </script>
-            <div  class="project_board_content break_word" id="content_<%=topic.id%>">
+            <div  class="project_board_content break_word f14" id="content_<%=topic.id%>">
               <div id="contentmessage<%=topic.id %>" class="upload_img">
                 <%= topic.content.html_safe %>
                 <!-- -->
@@ -122,7 +122,7 @@
             <%= l(:label_activity_time)%>：&nbsp;&nbsp;<%= format_time topic.created_on %>
 
           </div>
-          <a href="javascript:void(0)" nhname="showbtn_reply" class="c_dblue fr" style="margin-right:10px;"><%= l(:button_reply) %></a>
+          <a href="javascript:void(0)" nhname="showbtn_reply" class="c_dblue fr f14" style="margin-right:10px;"><%= l(:button_reply) %></a>
 
           <div class="cl"></div>
 
@@ -165,15 +165,15 @@
                         <li nhname="reply_rec" style="display:<%= replies_all_i>2?'none':'' %>" id="topic<%=message.id%>">
                           <%= link_to image_tag(url_to_avatar(message.author), :width => '34',:height => '34'), user_path(message.author), :class =>'Msg_pic' %>
                           <div class="Msg_txt">
-                            <%= link_to_user_header message.author,false,:class => 'fl c_orange ' %>
+                            <%= link_to_user_header message.author,false,:class => 'fl c_orange f14 ' %>
                             <br/>
-                            <div class="fl break_word">
+                            <div class="fl break_word f14">
                               <%= textAreailizable message,:content,:attachments => message.attachments %>
                               <!-- -->
                             </div>
                             <input nhname="nh_content_val" value="<%= message.content %>" type="hidden"/>
                             <br/><div class="cl"></div>
-                            <span class=" c_grey fl"><%= format_time(message.created_on) %></span>
+                            <span class=" c_grey fl f14"><%= format_time(message.created_on) %></span>
                             <%= link_to(
 
                                         l(:button_delete),
@@ -181,13 +181,13 @@
                                         :method => :post,
                                         :data => {:confirm => l(:text_are_you_sure)},
                                         :title => l(:button_delete),
-                                        :class => ' c_dblue fr'
+                                        :class => ' c_dblue fr f14'
                                 ) if message.course_destroyable_by?(User.current) %>
                             <%= link_to(
                                         l(:button_reply),
                                         'javascript:;',
                                         :nhname =>'showbtn_child_reply',
-                                        :class => ' c_dblue fr',
+                                        :class => ' c_dblue fr f14',
                                         :style => 'margin-right: 10px;',
                                         'data-topic-id' =>message.id,
                                         :title => l(:button_reply)) if !topic.locked? && authorize_for('messages', 'reply') %>
diff --git a/app/views/boards/_project_show.html.erb b/app/views/boards/_project_show.html.erb
index e7071d2a1..c3dd863d5 100644
--- a/app/views/boards/_project_show.html.erb
+++ b/app/views/boards/_project_show.html.erb
@@ -28,20 +28,20 @@
   </div>
 </div>
 <div class=" talklist_box" >
-  <p class="c_dark mb5">讨论区共有<span class="c_orange"><%= @topic_count %></span>个帖子</p>
+  <p class="c_dark mb5 f14">讨论区共有<span class="c_orange"><%= @topic_count %></span>个帖子</p>
   <% if @topics.any? %>
     <% @topics.each do |topic| %>
       <div class="talkmain_box" id="topic<%= topic.id %>" nhname="container_board" mhname="container_board_reply" style="border:none; margin-bottom:0; border-bottom: 1px dashed #d9d9d9;">
         <%= link_to image_tag(url_to_avatar(topic.author), :width=>"42",:height=>"42"), user_path(topic.author),:class =>'talkmain_pic fl' %>
-        <div class="talkmain_txt fl mt5">
+        <div class="talkmain_txt fl mt5 f14">
           <% author = topic.author.to_s %>
           <div style="max-width:60px;white-space:nowrap;overflow:hidden;float:left;text-overflow:ellipsis;">
-            <%= link_to author, user_path(topic.author), :class =>"talkmain_name fl ",:title=>author,
+            <%= link_to author, user_path(topic.author), :class =>"talkmain_name fl f14",:title=>author,
                         :style=>'max-width:60px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;' %>
           </div>
           <p style="float:left;color:#ff5722;">&nbsp;&nbsp;:</p>
 
-          <p class="talkmain_tit fl fb break_word" title="<%=  h(topic.subject) %>" style="width:auto;float:left;max-width:415px;white-space:nowrap;overflow:hidden;float:left;text-overflow:ellipsis;">&nbsp;&nbsp;<%=  h(topic.subject) %></p>
+          <p class="talkmain_tit fl fb break_word f14" title="<%=  h(topic.subject) %>" style="width:auto;float:left;max-width:415px;white-space:nowrap;overflow:hidden;float:left;text-overflow:ellipsis;">&nbsp;&nbsp;<%=  h(topic.subject) %></p>
           <div style="float:right;max-width:110px;">
             <% if topic.editable_by?(User.current) %>
                 <a href="javascript:void(0)" nhname="showbtn" style="color: #426e9a;float: right;margin-right: 10px;"><%= l(:button_edit) %></a>
@@ -95,7 +95,7 @@
             </script>
           </div>
           <div class="cl"></div>
-          <div  class="project_board_content break_word" id="content_<%=topic.id%>">
+          <div  class="project_board_content break_word f14" id="content_<%=topic.id%>">
             <div id="contentmessage<%=topic.id %>" class="upload_img">
               <%= topic.content.html_safe %>
               <!-- -->
@@ -111,7 +111,7 @@
           <%= l(:label_activity_time)%>：&nbsp;&nbsp;<%= format_time topic.created_on %>
         </div>
         <% if User.current.logged? %>
-          <a href="javascript:void(0)" nhname="showbtn_reply" class="c_dblue fr" style="margin-right:10px;"><%= l(:button_reply) %></a>
+          <a href="javascript:void(0)" nhname="showbtn_reply" class="c_dblue fr f14" style="margin-right:10px;"><%= l(:button_reply) %></a>
         <% end %>
         <div class="cl"></div>
         <div class="talk_new ml15 mb10" nhname='about_talk' id="about_newtalk<%=topic.id%>" style="display: none;border-top: 1px dashed #d9d9d9;padding-top:5px;margin-left:0px;padding-left:15px;">
@@ -152,15 +152,15 @@
                 <li nhname="reply_rec" style="display:<%= replies_all_i>2?'none':'' %>">
                   <%= link_to image_tag(url_to_avatar(message.author), :width => '34',:height => '34'), user_path(message.author), :class =>'Msg_pic' %>
                   <div class="Msg_txt">
-                    <%= link_to_user_header message.author,false,:class => 'fl c_orange ' %>
+                    <%= link_to_user_header message.author,false,:class => 'fl c_orange f14 ' %>
                     <br/>
-                    <div class="fl break_word">
+                    <div class="fl break_word f14">
                       <%= textAreailizable message,:content,:attachments => message.attachments %>
                       <!-- -->
                     </div>
                     <input nhname="nh_content_val" type="hidden" value="<%= message.content %>"/>
                     <br/><div class="cl"></div>
-                    <span class=" c_grey fl"><%= format_time(message.created_on) %></span>
+                    <span class=" c_grey fl f14"><%= format_time(message.created_on) %></span>
                     <%= link_to(
 
                                 l(:button_delete),
@@ -168,13 +168,13 @@
                                 :method => :post,
                                 :data => {:confirm => l(:text_are_you_sure)},
                                 :title => l(:button_delete),
-                                :class => ' c_dblue fr'
+                                :class => ' c_dblue fr f14'
                         ) if message.course_destroyable_by?(User.current) %>
                     <%= link_to(
                                 l(:button_reply),
                                 'javascript:;',
                                 :nhname =>'showbtn_child_reply',
-                                :class => ' c_dblue fr',
+                                :class => ' c_dblue fr f14',
                                 :style => 'margin-right: 10px;',
                                 :title => l(:button_reply)) if !topic.locked? && authorize_for('messages', 'reply') %>
                   </div>