diff --git a/public/stylesheets/public.css b/public/stylesheets/public.css
index b688b495f..e015fbe57 100644
--- a/public/stylesheets/public.css
+++ b/public/stylesheets/public.css
@@ -439,7 +439,7 @@ a.box_close{background:url(../images/img_floatbox.png) -22px 0 no-repeat;}
 
 /*文本左对齐*/
 .tl{text-align: left;}
-img{max-width: 100%;}
+img,embed{max-width: 100%;}
 .attachments {clear: both;}
 .is_public_checkbox{margin-left: 15px;margin-right: 10px;}
 .author_name{color: #3ca5c6 !important;}