diff --git a/public/designs/themes/base/style.css b/public/designs/themes/base/style.css
index 83a836f..fd6c39b 100644
--- a/public/designs/themes/base/style.css
+++ b/public/designs/themes/base/style.css
@@ -1016,7 +1016,7 @@ hr.pre-posts, hr.sep-posts {
 
 .post_comment_box.opened {
   border: none;
-  background: #FFF;
+  background: transparent;
 }
 
 
--
libgit2 0.21.2