Fix scroll in sphinx search (#3164)

* Fix scroll

Author: svekars

_static/css/custom2.css

@@ -67,8 +67,11 @@ input[type="radio"] {
 .gsc-control-cse {
    padding: 0 !important;
    border-radius: 0px !important;
-   border: none !important;;
-   overflow: hidden;
+   border: none !important;
+}
+
+.gsc-overflow-hidden {
+  overflow: visible !important;
 }
 
 #___gcse_0 {