diff --git a/manager.css b/manager.css
index 6fa8088..7520933 100644
--- a/manager.css
+++ b/manager.css
@@ -114,6 +114,8 @@ button#open-themes-btn:active {
     width: 100%;
     border-radius: 5px;
     padding: 10px 10px 18px;
+    width: 420px;
+    max-width: 820px;
 }
 
 #theme-name {