feat(): add support for responsive iframes

public/css/theme.scss

@@ -13,6 +13,7 @@ body {
   font-family: 'Source Code Pro';
   background-color: $bg-color;
   color: $text-color;
+  overflow-x: hidden;
   &>.container-fluid {
     @extend .no-padding-left-and-right;
   }
@@ -107,3 +108,18 @@ a {
     }
   }
 }
+
+.video-wrapper {
+  position: relative;
+  padding-bottom: 56.25%;
+  padding-top: 10px;
+  height: 0;
+
+  iframe {
+    position: absolute;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+  }
+}