Use percentages in responsive embed modifiers

- Credit: @adammacias
- Originally proposed in #16499 with previous commit

diff --git a/scss/_responsive-embed.scss b/scss/_responsive-embed.scss
index bedab270a1055b18e453e7923d9fd48a55e1f135..772b853c79cd06c855b79027c3d30a55fe9c4e67 100644 (file)
--- a/scss/_responsive-embed.scss
+++ b/scss/_responsive-embed.scss
@@ -28,15 +28,15 @@
 
 // Modifier class for 21:9 aspect ratio
 .embed-responsive-21by9 {
-  padding-bottom: 42.85%;
+  padding-bottom: percentage(9 / 21);
 }
 
 // Modifier class for 16:9 aspect ratio
 .embed-responsive-16by9 {
-  padding-bottom: 56.25%;
+  padding-bottom: percentage(9 / 16);
 }
 
 // Modifier class for 4:3 aspect ratio
 .embed-responsive-4by3 {
-  padding-bottom: 75%;
+  padding-bottom: percentage(3 / 4);
 }