diff --git a/install-usercss/install-usercss.css b/install-usercss/install-usercss.css
index 6b5d2466..5231410e 100644
--- a/install-usercss/install-usercss.css
+++ b/install-usercss/install-usercss.css
@@ -446,7 +446,7 @@ label {
 
 /************ reponsive layouts ************/
 
-@media (max-width:800px) {
+@media (max-width:850px) {
   body {
     overflow: hidden;
   }