diff --git a/wp-includes/css/media-views.css b/wp-includes/css/media-views.css
index 3e2f9fcdb6..00cd679870 100644
--- a/wp-includes/css/media-views.css
+++ b/wp-includes/css/media-views.css
@@ -244,7 +244,11 @@
 }
 
 .media-sidebar .setting input[type="checkbox"] {
-	margin-top: 10px;
+	width: auto;
+	height: 30px;
+	float: none;
+	margin: 0;
+	padding: 0;
 }
 
 .media-sidebar .setting span,
@@ -554,7 +558,8 @@
 	overflow: hidden;
 }
 
-.media-iframe iframe {
+.media-frame .media-iframe,
+.media-frame .media-iframe iframe {
 	height: 100%;
 	width: 100%;
 }