diff --git a/files/assets/css/main.css b/files/assets/css/main.css
index 3ac3a8bf4..300b897bd 100644
--- a/files/assets/css/main.css
+++ b/files/assets/css/main.css
@@ -2224,29 +2224,6 @@ a.bg-light:hover, a.bg-light:focus, button.bg-light:hover, button.bg-light:focus
 		display: block !important;
 	}
 }
-.embed-responsive {
-	position: relative;
-	display: block;
-	width: 100%;
-	padding: 0;
-	overflow: hidden;
-}
-.embed-responsive::before {
-	display: block;
-	content: "";
-}
-.embed-responsive iframe, .embed-responsive embed, .embed-responsive object, .embed-responsive video {
-	position: absolute;
-	top: 0;
-	bottom: 0;
-	left: 0;
-	width: 100%;
-	height: 100%;
-	border: 0;
-}
-.embed-responsive-16by9::before {
-	padding-top: 56.25%;
-}
 .flex-row {
 	flex-direction: row !important;
 }