课程动态回复之后，编辑器变宽

app/controllers/messages_controller.rb

@@ -162,7 +162,7 @@ class MessagesController < ApplicationController
     @reply.subject = "RE: #{@topic.subject}" unless params[:reply][:subject]
     @topic.children << @reply
     user_activity = UserActivity.where("act_type='Message' and act_id =#{@topic.id}").first
-    user_activity.updated_at = @reply.created_on
+    user_activity.updated_at = Time.now
     user_activity.save
     #@topic.update_attribute(:updated_on, Time.now)
     if !@reply.new_record?

public/javascripts/init_activity_KindEditor.js

@@ -151,4 +151,6 @@ function init_activity_KindEditor_data(id){
             }
         });
     });
+
+    $(".ke-edit").css("height","25px");
 }