Fix form validation error default visibility (#13580)

Form validation error messages wrapped in `span[visible-when-invalid]` are shown by default, this commit corrects that, and thereby fixes #13576.
ampproject · Feb 21, 2018 · 2d7e578 · 2d7e578
1 parent d16c1f2
commit 2d7e578
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/css/amp.css b/css/amp.css
@@ -617,6 +617,13 @@ form [submit-error] {
   display: none;
 }
 
+/**
+ * Form validation error messages should be hidden at first.
+ */
+span[visible-when-invalid] {
+  display: none;  
+}
+
 /**
  * Hide the update reference point of amp-live-list by default. This is
  * reset by the `amp-live-list > .amp-active[update]` selector.