diff --git a/cmd/present/static/styles.css b/cmd/present/static/styles.css
index ffd6f3a940..0ee98ce88d 100644
--- a/cmd/present/static/styles.css
+++ b/cmd/present/static/styles.css
@@ -451,3 +451,6 @@ div.output .buttons {
   left: -5px;
   top: -5px;
 }
+iframe {
+  border: none;
+}
\ No newline at end of file