Issue #2227121 by emma.maria, Vally79, DickJohnson, Jill L, frankfarm,...

Issue #2227121 by emma.maria, Vally79, DickJohnson, Jill L, frankfarm, rootwork, jamesquinton, Rajendar Reddy, krueschi, ericxb, seiplax, bluegriff: The "Default country" dropdown element overflows the installer container at certain widths

core/themes/seven/css/components/form.css

@@ -183,6 +183,13 @@ textarea.form-textarea {
   clear: both;
 }
 
+/**
+ * Limits extra long instances of select elements to the max width allowed
+ * to avoid breaking layouts.
+ */
+select {
+  max-width: 100%;
+}
 
 /**
  * Select elements - Webkit only