diff --git a/app/views/messages/_form.html.erb b/app/views/messages/_form.html.erb
index 8ca518a72..2ed830ceb 100644
--- a/app/views/messages/_form.html.erb
+++ b/app/views/messages/_form.html.erb
@@ -4,11 +4,12 @@
 </div>
 <% replying ||= false %>
 
-<div class="box ">
+<div class="box ph10_5">
 <!--[form:message]-->
 <p><label for="message_subject"><%= l(:field_subject) %></label><br />
-<%= f.text_field :subject,:size => 60, :style => "width:490px;", :id => "message_subject" %><!--by young-->
-
+<%= f.text_field :subject,:size => 60, :style => "width: 99%;", :id => "message_subject" %><!--by young-->
+</p>
+<p>
 <% unless replying %>
   <% if @message.safe_attribute? 'sticky' %>
     <%= f.check_box :sticky %> <%= label_tag 'message_sticky', l(:label_board_sticky) %>
diff --git a/public/stylesheets/nyan.css b/public/stylesheets/nyan.css
index fcc58bd3e..03e4d6775 100644
--- a/public/stylesheets/nyan.css
+++ b/public/stylesheets/nyan.css
@@ -3,6 +3,9 @@
 .text_center{
   text-align: center;
 }
+.ph10_5{ /*padding horizontal 10% 5%*/
+  padding: 0px 5% 0px 10%;
+}
 * {
   font-family: Helvetica, Tahoma, Arial, "Microsoft YaHei", "微软雅黑", SimSun, "宋体", STXihei, "华文细黑", Heiti, "黑体", sans-serif;
 }