diff --git a/public/stylesheets/css/common.css b/public/stylesheets/css/common.css
index 919ceb721..33f7d2384 100644
--- a/public/stylesheets/css/common.css
+++ b/public/stylesheets/css/common.css
@@ -3,7 +3,7 @@
 /* 2015-06-26 */
 html,body{height: 100%;}
 body,h1,h2,h3,h4,h5,h6,hr,p,blockquote,dl,dt,dd,ul,ol,li,pre,form,fieldset,legend,button,input,textarea,th,td{ margin:0; padding:0;}
-body,table,input,textarea,select,button { font-family: "微软雅黑","宋体"; font-size:14px;line-height:1.5; background:#eaebec;}
+body,table,input,textarea,select,button { font-family: "微软雅黑","宋体"; font-size:12px;line-height:1.5; background:#eaebec;}
 div,img,tr,td,table{ border:0;}
 table,tr,td{border:0;}
 ol,ul,li{ list-style-type:none}