diff --git a/library.css b/library.css
index 9a2c4a7..2ef2eb6 100644
--- a/library.css
+++ b/library.css
@@ -1050,3 +1050,8 @@ showTitle h2{
 a:hover, .uk-link:hover , .uk-link:hover, a:hover {
     color: var(--portal-main-color);
 }
+
+input:invalid, textarea:invalid {
+    box-shadow: none;
+}
+