diff --git a/_sass/overrides.scss b/_sass/overrides.scss
index 09a4a14bd8ce0580cf1256362cb06251f8c3d802..24655969a2970dae00dd67f99c322424a1fd9b33 100644
--- a/_sass/overrides.scss
+++ b/_sass/overrides.scss
@@ -6,6 +6,7 @@ abbr[title] {
   text-decoration: none;
 }
 
+iframe,
 summary {
   margin-bottom: 1em;
 }