diff --git a/src/easings.scss b/src/easings.scss
index 73db4b7..eb5694a 100644
--- a/src/easings.scss
+++ b/src/easings.scss
@@ -1,2 +1,15 @@
 @import 'functions/bezier';
 @import 'easings/easings';
+
+/**
+ * Attach easings custom properties to `:root {}` if `$easings-legacy` is true
+ * or doesn’t exist.
+ */
+@if variable-exists('easings-legacy') == false or $easings-legacy == false {
+
+  :root {
+    @each $easing in $easings-list {
+      --#{$easing}: cubic-bezier(#{map-get($easings-map, $easing)});
+    }
+  }
+}