Initial commit

client/scss/bootstrap/mixins/_visibility.scss

@@ -0,0 +1,8 @@
+// stylelint-disable declaration-no-important
+
+// Visibility
+
+@mixin invisible($visibility) {
+  visibility: $visibility !important;
+  @include deprecate("`invisible()`", "v4.3.0", "v5");
+}