diff --git a/src/wp-content/themes/twentyseventeen/style.css b/src/wp-content/themes/twentyseventeen/style.css
index 6a6a629abb..7ca4f6c950 100644
--- a/src/wp-content/themes/twentyseventeen/style.css
+++ b/src/wp-content/themes/twentyseventeen/style.css
@@ -2846,6 +2846,11 @@ img.alignright {
 	padding: 0;
 }
 
+audio:focus,
+video:focus {
+	outline: thin dotted;
+}
+
 /* Make sure embeds and iframes fit their containers. */
 
 embed,