diff --git a/db/schema.rb b/db/schema.rb
index 7b78016d9..74348a958 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -1137,23 +1137,6 @@ ActiveRecord::Schema.define(:version => 20160708005533) do
     t.integer  "viewed_count",  :default => 0
   end
 
-  create_table "mess", :id => false, :force => true do |t|
-    t.string   "课程名"
-    t.integer  "课程ID",                    :default => 0,  :null => false
-    t.string   "教师姓",                     :default => "", :null => false
-    t.string   "教师名",       :limit => 30, :default => "", :null => false
-    t.string   "主贴名",                     :default => "", :null => false
-    t.integer  "主贴或回帖ID",                 :default => 0,  :null => false
-    t.integer  "回帖对应主贴ID"
-    t.integer  "帖子点赞数"
-    t.integer  "主贴回复数",                   :default => 0,  :null => false
-    t.text     "主贴或回帖内容"
-    t.datetime "发帖时间",                                    :null => false
-    t.integer  "发帖或回帖用户ID",               :default => 0,  :null => false
-    t.string   "发帖或回帖用户姓",                :default => "", :null => false
-    t.string   "发帖或回帖用户名",  :limit => 30, :default => "", :null => false
-  end
-
   create_table "message_alls", :force => true do |t|
     t.integer  "user_id"
     t.integer  "message_id"
diff --git a/public/stylesheets/courses.css b/public/stylesheets/courses.css
index 24a8671ae..174f572fa 100644
--- a/public/stylesheets/courses.css
+++ b/public/stylesheets/courses.css
@@ -57,7 +57,7 @@ a:hover.news_foot{ color:#787b7e; border:1px solid #d4d4d4;}
 .hworkList60 {width:60px; text-align:center;}
 .hworkList60 {width:60px; text-align:center;}
 .hworkList70 {width:70px; text-align:center;}
-.hworkList80 {width:90px; text-align:center;}
+.hworkList80 {width:80px; text-align:center;}
 .hworkList90 {width:90px; text-align:center;}
 .hworkList100 {width:100px; text-align:center;}
 .hworkList110 {width:110px; text-align:center;}