diff --git a/public/images/course/arrow_up.jpg b/public/images/course/arrow_up.jpg
index bbf348fe1..7bcfa859c 100644
Binary files a/public/images/course/arrow_up.jpg and b/public/images/course/arrow_up.jpg differ
diff --git a/public/images/course/arrow_up2.jpg b/public/images/course/arrow_up2.jpg
new file mode 100644
index 000000000..bbf348fe1
Binary files /dev/null and b/public/images/course/arrow_up2.jpg differ
diff --git a/public/stylesheets/courses.css b/public/stylesheets/courses.css
index 5914d57e6..1cff7e07a 100644
--- a/public/stylesheets/courses.css
+++ b/public/stylesheets/courses.css
@@ -33,7 +33,7 @@ a:hover.news_foot{ color:#787b7e; border:1px solid #d4d4d4;}
 .ctt2{clear:both; }
 .hworkListBanner {width:720px; height:40px; background:#eaeaea; margin-bottom:10px;}
 .hworkListContainer {float:left; clear:both; width:720px;}
-.showHwork{ border:2px solid #269ac9; width:696px; padding:10px; color:#666666; padding-bottom:0px; }
+.showHwork{ border:1px solid #eaeaea; width:696px; padding:10px; color:#666666; padding-bottom:0px; box-shadow: 0px 2px 8px rgba(146, 153, 169, 0.5); }
 .showHworkP{ width:630px; float:left;}
 .showHwork ul li {margin-bottom: 5px;}
 .hworkPingText{ float:left; border:1px solid #e4e4e4; padding:5px; width:618px; height:35px;}
@@ -838,7 +838,7 @@ a:hover.icon_remove{background:url(images/icons.png) -20px -338px no-repeat;}
 a.hwork_center{ display:block; width:60px; text-align:center; margin-right:5px;}
 .show_hwork{ border:2px solid #64bdd9; width:646px; padding:10px; color:#666666; padding-bottom:0px; }
 .show_hwork ul li{ margin-bottom:5px;}
-.show_hwork_arrow{ position:relative; top:2px; left:165px;background:url(../images/course/arrow_up.jpg) 0 0 no-repeat; width:20px; height:11px;}
+.show_hwork_arrow{ position:relative; top:1px; left:165px;background:url(../images/course/arrow_up.jpg) 0 0 no-repeat; width:20px; height:11px;}
 .tit_fb{ font-weight:bold; width:66px; text-align:right; display:block; float:left;}
 .ml160{ margin-left:160px;}
 .show_hwork_p{ width:630px; float:left;}