diff --git a/public/images/item.png b/public/images/item.png
new file mode 100644
index 000000000..99dcfc0f5
Binary files /dev/null and b/public/images/item.png differ
diff --git a/public/images/leftside.png b/public/images/leftside.png
new file mode 100644
index 000000000..c927f9eb5
Binary files /dev/null and b/public/images/leftside.png differ
diff --git a/public/stylesheets/courses.css b/public/stylesheets/courses.css
index 042e7caae..e62f5150a 100644
--- a/public/stylesheets/courses.css
+++ b/public/stylesheets/courses.css
@@ -1,3 +1,4 @@
+
 /*右侧内容--动态*/
 .project_r_h{ width:670px; height:40px; background:#eaeaea; margin-bottom:10px;}
 .project_h2{ background:#64bdd9; color:#fff; height:33px; width:90px; text-align:center; font-weight:normal; padding-top:7px; font-size:16px;}
@@ -17,12 +18,37 @@
 .project_txt02{ color:#0781b4; width:618px; display:block; float:left;  overflow:hidden; white-space: nowrap; text-overflow:ellipsis;}
 .project_txt:hover{ color:#066e9a;}
 .noline{ border-bottom:none;}
+.news_description{max-height: 38px;overflow:hidden;}
+.news_description_none{max-height: none;}
+.news_foot{ border:1px solid #e8eef2; color: #929598; text-align:center; width:600px; height:20px; padding-top:3px; cursor:pointer;}
+.news_foot:hover{ color:#787b7e; border:1px solid #d4d4d4;}
+
+/*弹框*/
+.floatbox{ width:420px; border:3px solid #15bccf; background:#fff; padding:5px;}
+/*.box_close{ display:block; float:right; width:16px; height:16px; background:url(../images/img_floatbox.png) 0 0 no-repeat;}*/
+/*.box_close:hover{background:url(../images/img_floatbox.png) -22px 0 no-repeat;}*/
+/*邮件邀请*/
+.box_main{ width:345px; margin:0 auto;}
+.box_h3{ color:#15bccf; text-align:center; font-size:16px;}
+.box_p{ color:#404040; margin-bottom:5px;}
+.fb_item{ color:#919191; border:1px solid #919191; height:28px; margin-bottom:10px; padding-left:5px; width:290px;}
+/*.icon_addm{ background:url(../images/img_floatbox.png) 0 -33px no-repeat; width:16px; height:16px; display:block;  margin:5px 0 0 5px;}*/
+/*.icon_addm:hover{background:url(../images/img_floatbox.png) 0 -61px no-repeat; }*/
+/*.icon_removem{ background:url(../images/img_floatbox.png) -22px -33px  no-repeat;width:16px; height:16px; display:block;  margin:5px 0 0 5px}*/
+/*.icon_removem:hover{background:url(../images/img_floatbox.png) -22px -61px  no-repeat;}*/
+.btn_free{ background:#ff5722; display:block; width:80px; text-align:center; color:#fff; height:26px; padding-top:3px; margin-bottom:10px;}
+.btn_free:hover{ background:#d63502;}
+/*成员邀请*/
+.invi_search{ width:230px; margin:0 auto;}
+.invi_search_input{ border:1px solid #15bccf; width:180px; height:24px; color:#9b9b9b; padding-left:5px; margin-bottom:10px;}
+.invi_search_btn{ background:#15bccf; color:#fff; text-align: center; width:40px; height:22px;border:1px solid #15bccf; padding-top:2px; cursor:pointer;}
+.invi_search_btn:hover{ background:#0da1b2; border:1px solid #0da1b2;}
 /*问题跟踪*/
 .problem_top{ margin:10px 0 ;}
 .problem_search_input{ border:1px solid #64bdd9; width:180px; height:24px; color:#9b9b9b; padding-left:5px; margin-bottom:10px;}
 .problem_search_btn{ background:#64bdd9; color:#fff; text-align: center; width:40px; height:22px;border:1px solid #64bdd9; padding-top:2px; cursor:pointer;}
 .problem_search_btn:hover{ background:#3da1c1; border:1px solid #3da1c1;}
-.problem_new_btn{ margin-left:10px; border:1px solid #ff7143; color:#ff7143; width:60px; height:22px; font-size:12px; text-align:center; padding-top:2px;}
+.problem_new_btn{ margin-left:10px; border:1px solid #ff7143; color:#ff7143; padding:1px 3px;  font-size:12px; text-align:center; padding-top:2px;}
 .problem_new_btn:hover{ background:#ff7143; color:#fff;}
 .problem_p{ color:#535252; margin-top:5px;}
 .problem_p span{ color:#ff3e00;}
@@ -34,12 +60,238 @@
 .problem_tit{ color:#0781b4; width:430px; display:block; overflow:hidden; white-space: nowrap; text-overflow:ellipsis;}
 .problem_tit:hover{ color:#09658c; }
 .problem_main{ border-bottom:1px dashed #d4d4d4; padding-bottom:10px; margin-bottom:10px;}
-
 /****翻页***/
 .wlist{}
 .wlist a{ float:right; border:1px solid #64bdd9; padding:0 5px; margin-left:3px; color:#64bdd9;}
 .wlist a:hover{border:1px solid #64bdd9; background-color:#64bdd9; color:#fff; text-decoration:none;}
 .wlist_select a { background-color:#48aac9; color:#fff;}
+/****讨论区***/
+.talk_top{ margin:10px 0; font-size:14px; color:#4c4c4c;}
+.talk_top span{ color:#ff7143;}
+.talk_txt{ width:460px; margin-left:10px; color:#676868;}
+.talk_up{ color:#f63c00;}
+.talk_pic{width:32px; height:32px; padding:2px;}
+.talk_btn{ background:#64bdd9; width:50px; height:20px; color:#fff; text-align:center; margin-top:12px; padding-top:3px;}
+.talk_btn:hover{ background:#2a9dc1;}
+/****讨论区内页***/
+.mt0{ margin-top:0px;}
+.talk_info{ color:#7d7d7d; margin-left:50px; margin-top:10px;}
+.talk_edit{ color:#426e9a; margin-right:5px;}
+.talk_edit:hover{ color:#ff5722;}
+.talk_reply { background:#eeeeee; padding:10px; margin-bottom:10px;}
+.talkpage_text{  border:1px solid #64bdd9; width:600px; color:#7d7d7d; padding:5px; margin:10px 0 10px 50px; background:#fff;}
+/****新建讨论***/
+.talk_new{  color:#4c4c4c;}
+.talk_input{ border:1px solid #64bdd9; height:22px; width:585px; background:#fff; margin-bottom:10px; padding:5px;}
+.talk_text{ border:1px solid #64bdd9; height:100px;width:585px; background:#fff; margin-left:5px; padding:5px; margin-bottom:10px;}
+.talk_new ul li{ }
+.sb{width:70px; height:26px; color:#606060; cursor:pointer;}
+.blue_btn{ background:#64bdd9; display:block; font-size:14px;color:#fff; height:26px; width:50px; text-align:center; margin-left:10px; margin-top:10px; padding-top:3px;}
+.blue_btn:hover{ background:#329cbd;}
+.grey_btn{ background:#d9d9d9; color:#656565;}
+.grey_btn:hover{ background:#717171; color:#fff;}
+/****资源库***/
+.f_l{ float:left;}
+.f_r{ float:right;}
+.resource a{ text-align:center;}
+.b_lblue{ background:#64bdd9;}
+.b_dblue{ background:#55a1b9; cursor:pointer;}
+.f_b{ font-weight: bold;}
+.c_blue{ color:#64bdd9;}
+.c_grey{ color:#999999;}
+.c_grey02{ color:#666666;}
+.f_14{ font-size:14px;}
+.c_dblue{ color:#3e6d8e;}
+.w90{width:90px;}
+.ml10{margin-left:10px;}
+.resource{  width:670px;}
+.re_top{width:660px; height:40px; background:#eaeaea; padding:5px;}
+.re_top input{ float:left;}
+.re_search{ margin-top:7px; margin-left:5px;}
+.re_schbox{ width:240px; height:24px; border:1px solid #64bdd9; color:#666666;}
+.re_schbtn{ width:60px; height:26px;  color:#fff; margin-right:5px; border:none;  margin-left:0px; }
+.re_fabu { display:block; width:90px; height:30px; font-size:14px; color:#fff; text-align:center; padding-top:10px; }
+.re_fabu:hover{background:#55a1b9;}
+.re_con{ margin:5px; width:665px;}
+.re_con_top{color:#494949; }
+.re_con_top span{ color:#999999; font-weight:bold;}
+.re_select{ display:block; width:88px; height:20px; border:1px solid #ff9900; color:#ff9900;  margin-left:10px; padding-top:2px;}
+.re_select:hover{ background:#ff9900; color:#fff; text-decoration:none;}
+.re_open{display:block; width:46px; height:19px; border:1px solid #64bdd9; color:#64bdd9;  margin-left:10px;padding-top:3px;}
+.re_open:hover{ background:#64bdd9; color:#fff; text-decoration:none;}
+a.re_de{ color:#6883b6; margin-left:15px;}
+.re_con_box{ border-bottom:1px dashed #dadada; padding-bottom:10px; margin-bottom:10px;}
+/****资源库***/
+/*.setting{ background:url(../images/setting.jpg) 0 0 no-repeat; width:670px; height:443px;}*/
+
+/* 作业列表 */
+.ttl{ }
+.ctt{height:820px;clear:both; }
+#contentbox{float:right;clear:both;width:670px;/*滑动门的宽度*/}
+/* TAB 切换效果 */
+.tb_{ background-color: #eaeaea; height:40px; }
+.tb_ ul{height:40px; }
+.tb_ li{float:left;height:34px;width: 90px;cursor:pointer; font-size:14px; padding-top:6px; text-align:center; }
+a.tb_all{ margin-left:212px; font-size:12px; display:block; height:23px; padding-top:4px; width:90px; color:#7a7a7a; border:1px solid #cbcbcb; background:#fff; text-align: center;}
+a:hover.tb_all{ background:#eaeaea; text-decoration:none;}
+
+.work_tb_{ background-color: #eaeaea; height:40px; }
+a.work_edit{color: #64bdd9; display:block; padding:1px 5px; border:1px solid #64bdd9;}
+a:hover.work_edit{color: #fff; background: #64bdd9;}
+
+/* 控制显示与隐藏css类 */
+.normaltab   { color:#64bdd9 ;  }
+.hovertab    {  color:#fff;  background-color:#64bdd9; }
+.normaltab a  { color:#64bdd9 ;  }
+.hovertab a{color:#fff;  background-color:#64bdd9; text-decoration:none;}
+.dis{display:block;  }
+.undis{display:none;}
+.c_red{ color:#de030d;}
+.f_12{ font-size:12px;}
+.w_40{ width:40px; border:1px solid red;}
+.dis_ul{ height:70px; border-bottom:1px dashed #d4d4d4; margin-bottom:10px;}
+.dis_ul li{ float:left;}
+.dis_ul li a{ display:block; color:#15bccf; }
+.pic_head{ width:44px; padding:0px 15px 0 0px;}
+.pic_head a{ text-align:center; width:44px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
+.pic_head img{ border:1px solid #e3e3e3; width:40px; height:40px; padding:1px;}
+.pic_head img:hover{border:1px solid #15bccf;}
+.dis ul li.wname a{ width:260px; font-size:14px; color:#595959; padding:20px 0 0 0px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
+.dis ul li.wdown a{padding-top:22px; color:#3d7ec2; margin-right:35px;}
+.wscore{ padding-top:22px; color:#888888; width:96px;}
+.dis ul li.wping{margin-left:12px; }
+.dis ul li.wping a{ margin-top:18px; margin-bottom:3px; width:43px; height:22px; background:#15bccf; color:#fff; text-align:center; padding-top:4px;}
+.dis ul li.wping a:hover{ background-color:#03a1b3;}
+.code_list{ float:right; font-size:12px; color:#484848; padding:5px 3px;  border-bottom:2px solid #15bccf; width:665px; margin-bottom:10px;}
+.code_list a{ color:#787878;}
+.fr{ float:right;}
+.c_grey{ color:#999; font-weight:normal;}
+.dis ul li.wname02 a{ width:200px; font-size:14px; color:#595959; padding:20px 0 0 15px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
+.dis ul li.wmine{ margin:12px 0 0 10px;}
+.dis ul li.wmine a{ color:#3d7ec2; text-align:center; width:50px; font-weight: bold;}
+.wzan{ margin:15px 0 0 25px; width:32px; height:44px;}
+.wzan a{ display: block;}
+a.wzan_img{background:url(images/pic_zan.png) 0 -59px no-repeat; display:block; height:31px; width:30px; color:#fff;}
+a.wzan_visited{background:url(images/pic_zan.png) 0 0 no-repeat;}
+.msg_box{ width:670px; height:173px; border-bottom:1px dashed #CCC; padding-top:10px;}
+.msg_box h4{ }
+.msg_box textarea{width:658px;height:90px;padding:5px;overflow:hidden;background-color: #ffffff; border:1px solid #CCC; margin:5px 0px; color:#666;  font-size:12px; }
+.msg_box a{ float:right; display:block; width:50px; height:22px; background:#15bccf; padding-top:3px; color:#fff; margin-left:10px; text-align:center; margin-top:5px;  }
+.msg_box a:hover{ background-color:#03a1b3; text-decoration:none;}
+
+/****评分弹框****/
+#popbox{width:488px;height:550px;position:absolute;z-index:100;left:50%;top:40%;margin:-215px 0 0 -300px;  background:#fff; -moz-border-radius:5px;  -webkit-border-radius:5px;  border-radius:5px; box-shadow:0px 0px 8px #194a81; padding:5px; overflow:auto; }
+.alert .close{width:26px;height:26px;overflow:hidden;position:absolute;top:-10px;right:-502px;background:url(images/close.png) no-repeat;cursor:pointer;}
+.alert .C{width:476px;height:296px;position:absolute;left:5px;top:5px;  }
+.ping_con{ margin:5px; border-bottom:1px dashed #CCC; padding-bottom:5px;}
+.ping_con ul{  height:30px;}
+.ping_con ul li{ float:left; color:#656767; font-weight:bold;}
+.ping_con h2{ font-size:14px; color:#444443; margin-bottom:10px; float:left;}
+.ping_con p{ color:#777777; font-size:12px; border-bottom:1px dashed #CCC; padding-bottom:5px;}
+.ping_con p span a{ color:#777777;}
+.ping_star{ width:160px; color:#333; font-weight:bold; margin-bottom:5px;}
+.ping_star span a{ float:right; width:20px; height:20px; background:url(images/star.png) -2px 0 no-repeat; margin-right:3px;}
+.ping_star span a:hover{background:url(images/star.png) -24px 0 no-repeat;}
+.ping_con textarea{ width:455px; height:76px; border:1px solid #15bccf; margin-bottom:5px; color:#666; font-size:12px;}
+a.ping_sub{ float:right; height:22px; width:60px; background:#15bccf; color:#fff; text-align:center;}
+a:hover.ping_sub{ background:#14a8b9;}
+.recall{ border-top:1px solid #CCC; padding:5px 0;}
+.recall_head{ float:left;}
+.recall_head a{ display:block; width:30px; height:30px; border:1px solid #CCC; padding:1px;}
+.recall_head a:hover{border:1px solid #15bccf;}
+.recall_con{ float:left;color:#777777; width:335px; margin-left:10px; }
+.recall_con a{ color:#15bccf; }
+.ping_list{ margin-top:15px;}
+.ping_ttl{height:18px;}
+.ping_ctt{height:auto;padding:6px;clear:both;}
+.ping_tb_{   border-bottom:3px solid #e4e4e4; text-align:center;}
+.ping_tb_ ul{height:24px;}
+.ping_tb_ li{float:left;height: 24px;width: auto; padding:0 10px;cursor:pointer;}
+.ping_normaltab   {  color:#15bccf ; border-bottom:3px solid #e4e4e4;}
+.ping_hovertab    {   color:#656767; font-weight:bold; border-bottom:3px solid #15bccf; }
+.ping_dis{display:block; }
+.ping_undis{display:none;}
+.ping_C{border-bottom:1px dashed #CCC; padding:10px 0 0px;}
+.ping_dispic a{ display:block; height:46px; width:46px; border:1px solid #CCC; padding:1px; float:left;}
+.ping_dispic a:hover{border:1px solid #15bccf;}
+.ping_discon{ float:left; width:384px; margin-left:10px; }
+.ping_distop span{ float:left;}
+.ping_distop p{ color:#5f5f5f;}
+.ping_disfoot a{ float:right; color: #6883b6; margin-left:5px; margin-bottom:5px;}
+.ping_distop span a{ float:right; width:20px; height:20px; background:url(images/star.png) -24px 0 no-repeat; margin-right:3px;}
+
+/* 创建作品 work */
+.Newwork{ width:668px; height:418px; border:1px solid #c3c3c3;}
+.N_top{margin-left:600px; height:20px; width:60px;}
+.N_top a{ font-size:14px; color:#15bccf; display:block; background:url(images/pic_ad.png) 0 5px no-repeat; height:20px; width:60px; padding-left:16px;}
+.N_con{ color:#484747; font-weight:bold; width:720px; margin:15px auto;}
+.N_con p{ margin-bottom:15px;}
+.w430{ width:430px;}
+.w350{ width:350px;}
+.w620{ width:480px; height:160px; border:1px solid #CCC;}
+.bo{height:26px; border:1px solid #CCC; }
+a.tijiao{ height:28px; display:block; width:80px; color:#fff; background:#15bccf; text-align:center; padding-top:4px; float:left; margin-right:10px;}
+a:hover.tijiao{ background:#0f99a9;}
+.members_left{ float:left; width:370px;  margin-right:20px;}
+.members_left{}
+.members_left ul li{ height:30px; border-bottom:1px solid #CCC;  width:570px; padding-top:5px; }
+.members_left ul li a{ float:left;}
+.members_left ul li span{ float:left; text-align:center; color:#484747;}
+.w260{ text-align:center; width:160px;}
+.f_b{ font-weight: bold;}
+.members_right label{ margin-left:15px;}
+.N_search{ height:20px; border:1px solid #999;}
+/* 创建作品 homework */
+.hwork_new{  color:#4c4c4c;}
+.c_red{ color:#F00;}
+.hwork_input{ border:1px solid #64bdd9; height:20px; width:555px; background:#fff; margin-bottom:10px; padding:5px;}
+.hwork_input02{ border:1px solid #64bdd9; height:15px; width:120px; background:#fff; margin-bottom:10px; padding:5px;}
+.hwork_text{ border:1px solid #64bdd9; height:100px;width:555px; background:#fff; margin-left:5px; padding:5px; margin-bottom:10px;}
+.hwork_new ul li{ }
+.ml21{ margin-left:21px;}
+.ml9{ margin-left:9px;}
+
+/* 匿名评分弹框 */
+#popbox02{width:480px;height:200px;position:absolute;z-index:100;left:50%;top:50%;margin:-215px 0 0 -300px;  background:#fff; -moz-border-radius:5px;  -webkit-border-radius:5px;  border-radius:5px; box-shadow:0px 0px 8px #194a81;  overflow:auto;}
+.alert .close02{width:26px;height:26px;overflow:hidden;position:absolute;top:-10px;right:-490px;background:url(images/close.png) no-repeat;cursor:pointer;}
+.ni_con { width:425px; margin:25px 30px;}
+.ni_con h2{ display:block; height:40px; width:188px;  margin:0 auto;}
+.ni_con p{ color:#808181;}
+.ni_con a:hover{ text-decoration:none;}
+a.xls{ margin-left:5px; color:#136b3b;}
+/* 学生列表*/
+.st_list{ width:670px;}
+.st_search{ }
+.st_search span{ font-size:14px; font-weight:bold; color:#606060; margin-right:35px;}
+.st_search_input{ border:1px solid #1c9ec7; background:#fff; height:20px; color:#c4c4c4; width:200px; padding-left:5px; margin-bottom:5px;}
+.st_search a{ background:#1c9ec7; color:#fff;border:1px solid #1c9ec7; text-align:center; display:block; width:45px; height:20px; float:left; font-size:12px; }
+.st_search a:hover{ background:#048fbb; text-decoration:none;}
+.classbox{ border:1px solid #f8df8c; background:#fffce6; color:#0d90c3; padding:0 3px; float:left; margin-left:15px;}
+.st_addclass{ margin-top:5px;}
+.st_addclass ul li,.st_addclass a,.st_addclass img{ float:left;}
+.st_addclass img{ margin-top:3px;}
+.st_addclass a{ color:#0d90c3;}
+.st_box{ margin-top:10px; border-top:1px solid #CCC; padding-top:10px;}
+.st_box ul li{ float:left;}
+.st_box_top a{  font-weight:bold; color:#7a7a7a; float:left; margin-bottom:5px;}
+.st_box_top  a:hover{ color:#1c9ec7;}
+a.st_up{ display: block; width:8px; float:left; height:13px; background:url(../images/pic_up.png) 0 0 no-repeat; margin-top:5px; margin-left:3px;}
+a.st_down{ display: block; width:8px; float:left; height:13px; background:url(../images/pic_up.png) 0 -22px no-repeat; margin-top:5px; margin-left:3px;}
+a.st_img { display:block;width:32px; height:32px; border:1px solid #CCC; padding:1px;}
+a:hover.st_img { border:1px solid #1c9ec7; }
+.st_boxlist{ border-bottom:1px dashed #CCC; height:43px; margin-bottom:10px; }
+.st_boxlist a{ float:left;}
+.st_boxlist ul{ float:left; width:200px; margin-left:10px;}
+.st_boxlist ul li a{ color:#5d5d5d;}
+.st_boxlist ul li a span{ color:#1c9ec7;}
+.st_boxlist ul li a:hover span{ color:#ff8e15;}
+.ml50{ margin-left:50px;}
+.ml358{ margin-left:358px;}
+.ml258{ margin-left:254px;}
+.ml65{ margin-left:65px;}
+a:hover.st_add{ color:#ff8e15;}
+
+
 
 
 
diff --git a/public/stylesheets/leftside.css b/public/stylesheets/leftside.css
index 895d86e8f..fad1b835c 100644
--- a/public/stylesheets/leftside.css
+++ b/public/stylesheets/leftside.css
@@ -2,13 +2,19 @@
 .topbar_info02 p{color: #7f7f7f;}
 .search{ margin-top:8px; margin-left:71px;}
 /*信息*/
-.project_info{ background:#fff; padding:10px;width:222px;  padding-right:8px; margin-bottom:10px;}
+.project_info{ background:#fff; padding:10px; padding-right:0px;width:222px;  padding-right:8px; margin-bottom:10px;}
 .pr_info_id{ width:137px; color:#5a5a5a; font-size:14px; margin-top:5px;}
 .pr_info_logo{ border:1px solid  #eaeaea; width:60px; height:60px; padding:1px;}
 .pr_info_logo:hover{ border:1px solid #64bdd9; }
 .pr_info_join{}
-.pr_info_join_a{  color:#fff; display:block; padding:0 5px; padding-top:2px; height:20px; margin-right:5px; float:left;  text-align:center; }
-.pr_info_join a:hover{ background:#41a8c8;}
+a.pr_join_a{  color:#fff; display:block; padding:0 5px 0 3px; padding-top:2px; height:20px; margin-right:5px; float:left;  text-align:center; background-color:#64bdd9; float:left; }
+a:hover.pr_join_a{ background:#41a8c8;}
+.pr_join_span{color: #fff; display:block; padding:0 5px; padding-top:2px; height:20px; margin-right:5px; float:left;  text-align:center; background: #CCC;}
+.pr_setting{ display:block; background:url(../images/leftside.png) -1px 0 no-repeat; width:11px; height:11px; margin-top:3px; float:left; }
+.pr_copy{ display:block; background:url(../images/leftside.png) -1px -23px no-repeat; width:11px; height:11px; margin-top:3px; float:left; }
+.pr_close{ display:block; background:url(../images/leftside.png) -1px -49px no-repeat; width:11px; height:11px; margin-top:3px; float:left; }
+.pr_add{display:block; background:url(../images/leftside.png) 0px -71px no-repeat; width:11px; height:11px; margin-top:3px; float:left; }
+.pr_arrow{display:block; background:url(../images/leftside.png) 0px -90px no-repeat; width:11px; height:11px; margin-top:3px; float:left; }
 .pr_info_name{ color:#3e4040; font-size:14px;  line-height:1.5;}
 .pr_info_name:hover{ color:#3ca5c6;}
 .pr_info_score{ font-size:14px; color:#3e4040; }
@@ -40,7 +46,7 @@
 
 /*简介*/
 .project_intro{ width:220px; padding:10px; background:#fff; margin-top:10px; padding-top:5px; color:#6d6d6d; line-height:1.9;}
-.course_description{max-height: 112px;overflow:hidden;}
+.course_description{max-height: 112px;overflow:hidden; word-break: break-all;word-wrap: break-word;}
 .course_description_none{max-height: none;}
 .lg-foot{ border:1px solid #e8eef2; color: #929598; text-align:center; width:220px; height:23px; cursor:pointer;}
 .lg-foot:hover{ color:#787b7e; border:1px solid #d4d4d4;}
diff --git a/public/stylesheets/public.css b/public/stylesheets/public.css
index d44c10161..28d956bd8 100644
--- a/public/stylesheets/public.css
+++ b/public/stylesheets/public.css
@@ -11,6 +11,8 @@ a:hover,a:active{color:#000;}
 .cl{ clear:both; overflow:hidden; }
 .fl{ float: left;}
 .fr{ float:right;}
+.f_l{ float:left;}
+.f_r{ float:right;}
 
 .ml10{ margin-left:10px;}
 .ml20{ margin-left:20px;}
@@ -84,18 +86,33 @@ a:hover.c_blue02{color: #0781b4;}
 #TopUser02 div a{position: relative;display: block;white-space: nowrap;text-align: left; line-height:1.9; margin-left:5px;background: #fff;color:#15bccf; font-weight:normal;}
 #TopUser02 div a:hover{	color:#e8770d; font-weight: bold;}
 /*头部导航下拉*/
-.topuser_nav ul{}
-.topuser_nav ul li{position: relative;   line-height:1.9; margin-top:0; }
-.topuser_nav ul li ul{position: absolute;width:80px; /*sub menu width*/top: 25px;display: none; background:#15bccf; }
-.topuser_nav ul li ul li ul{ left:80px; top:-8px; /* Parent menu width - 1*/ width:100px; overflow:hidden; white-space: nowrap; text-overflow:ellipsis;}
-.topuser_nav ul li a{display: block;color:#fff;background:#15bccf; padding-left:10px; font-size:14px; font-weight: bold;margin-right:10px;}
-.topuser_nav ul li a:hover{font-weight: bold;color: #a1ebff; }
-.topuser_nav .subfolderstyle{  width:67px;background: url(../images/pic_headnav.png) no-repeat center right; }	
-/* Holly Hack for IE \*/
-* html .topuser_nav ul li { float: left; height: 1%; }
-* html .topuser_nav ul li a { height: 1%; }
-/* End */
-
+div#menu {height:41px; font-size:14px; font-weight:bold; }
+div#menu ul {float: left;}
+div#menu ul.menu { padding-left: 30px;  }
+div#menu li {position: relative; z-index: 9; margin: 0; display: block; float: left; }
+div#menu li:hover>ul { left: -2px;}
+div#menu a {position: relative;z-index: 10; height: 41px; display: block; float: left;line-height: 41px; text-decoration: none; font-size:14px; }
+div#menu a:hover, div#menu a:hover span { color: #a1ebff; }
+div#menu li.current a {}
+div#menu  {display: block; cursor: pointer; background-repeat: no-repeat;background-position: 95% 0;padding-right: 15px; _padding-right: 20px;}
+div#menu ul  a.parent  {background: url(../images/item.png) -20px -30px no-repeat;}
+div#menu ul  a.parent:hover  {background: url(../images/item.png) -20px -60px no-repeat;}
+div#menu ul ul a.parent  {background: url(../images/item.png) -20px 6px no-repeat;}
+div#menu ul ul a.parent:hover  {background: url(../images/item.png) -20px -11px no-repeat;}
+/* menu::level1 */
+div#menu a { padding: 5px 12px 0 10px;line-height: 30px; color: #fff;}
+div#menu li { background: url(../images/main-delimiter.png) 98% 4px no-repeat; }
+div#menu li.last { background: none; }
+/* menu::level2 */
+div#menu ul ul li { background: none; }
+div#menu ul ul { position: absolute;top: 38px; left: -999em; width: 90px; padding: 5px 0 0 0; background:#fff; border:1px solid #15bccf; margin-top:1px;}
+div#menu ul ul a {padding: 0 0 0 15px; height: auto; float: none;display: block; line-height: 24px; font-size:12px; font-weight:normal;color:#15bccf;}
+div#menu ul ul a:hover { color:#ff9900;}
+div#menu ul ul li.last { margin-left:15px; }
+div#menu ul ul li {width: 100%;}
+/* menu::level3 */
+div#menu ul ul ul {padding: 0;margin: -38px 0 0 92px !important; width:140px; }
+div#menu ul ul ul li a{ width:125px; overflow:hidden; white-space: nowrap; text-overflow:ellipsis;color:#15bccf;}
 
 /*主类容*/
 #Main{ background:#fff;  margin-bottom:10px;}
@@ -121,10 +138,10 @@ a:hover.c_blue02{color: #0781b4;}
 .footlogo{ width:580px; margin:0 auto;height:50px;   }
 /*意见反馈*/
 html{ overflow-x:hidden;}
-.scrollsidebar{ position:fixed;bottom:1px; right:1px; background:none; }
+.scrollsidebar{ position: fixed; bottom:1px; right:1px; background:none; }
 .side_content{width:154px; height:auto; overflow:hidden; float:left; }
 .side_content .side_list {width:154px;overflow:hidden;}
-.show_btn{ width:0; height:112px; overflow:hidden; float:left;margin-top: 200px; cursor:pointer;}
+.show_btn{ width:0; height:112px; overflow:hidden; float:left; margin-top:190px;cursor:pointer;}
 .show_btn span { display:none;}
 .close_btn{width:24px;height:24px;cursor:pointer;}
 .side_title,.side_bottom,.close_btn,.show_btn {background:url(../images/sidebar_bg.png) no-repeat; }
@@ -134,8 +151,8 @@ html{ overflow-x:hidden;}
 .close_btn { float:right; display:block; width:21px; height:16px; margin:9px 10px 0 0; _margin:16px 5px 0 0;}
 .close_btn span { display:none;}
 .side_center .custom_service p { text-align:center; padding:6px 0; margin:0; vertical-align:middle;}
-.msgserver { margin:10px 0 0px 5px;}
-.msgserver a { background:url(../images/sidebar_bg.png) no-repeat -119px -115px; padding-left:22px;}
+.msgserver { margin-top:5px;}
+.msgserver a { background:url(../images/sidebar_bg.png) no-repeat -119px -112px; padding-left:22px; height:21px; display:block; }
 .opnionText{box-shadow:none; width:122px; height:180px; border-color: #DFDFDF; background:#fff; color:#999; padding:3px; font-size:12px;overflow:auto; background-attachment:fixed;border-style:solid;}
 .opnionButton{ display:block; background:#15bccf; width:130px; height:23px; margin-top:5px; text-align:center; padding-top:3px;}
 .opnionButton:hover{background: #0fa9bb; }