diff --git a/app/assets/stylesheets/comments.css.scss b/app/assets/stylesheets/comments.css.scss
index 96cf18d..8a16d43 100644
--- a/app/assets/stylesheets/comments.css.scss
+++ b/app/assets/stylesheets/comments.css.scss
@@ -55,6 +55,17 @@
   }
 }
 
+.comment-submit[disabled] {
+  opacity: 0.4;
+  cursor: not-allowed;
+}
+
+.comment-submit {
+  background-color: #008cba;
+  opacity: 0.8;
+}
+
+
 .comment-success {
   color: #66FAB5;
 }
diff --git a/app/views/blogs/_comment.html.slim b/app/views/blogs/_comment.html.slim
index 42c33fd..9b828cf 100644
--- a/app/views/blogs/_comment.html.slim
+++ b/app/views/blogs/_comment.html.slim
@@ -8,7 +8,7 @@
         .small-12.large-6.columns
           = text_field_tag(:name, nil, placeholder: '你的名字', 'ng-model'=> 'name', 'ng-required'=> 'true')
           = text_field_tag(:email, nil, placeholder: '你的邮箱', 'ng-model'=> 'email', 'ng-pattern'=>"/^.+@.+$/", 'ng-required'=>"true")
-      button ng-click="submit()" ng-disabled="form.$invalid" 发表
+      button.comment-submit ng-click="submit()" ng-disabled="form.$invalid" 发表
       p.comment-success ng-show="publish_success" 发布成功
       p.comment-fail ng-show="publish_success == false" 发布失败: {{ publish_fail_msg }}
     .comment-diag ng-cloak=""