diff --git a/css/main.css b/css/main.css
index 12f5e9cd..8d847495 100644
--- a/css/main.css
+++ b/css/main.css
@@ -338,7 +338,6 @@ img.logo {
 
 #horizontal_ad {
   max-width: 100%;
-  height: 90px;
   overflow: auto;
 }