diff --git a/features/mixins.yml b/features/mixins.yml
new file mode 100644
index 00000000000..2574b69c022
--- /dev/null
+++ b/features/mixins.yml
@@ -0,0 +1,4 @@
+name: CSS mixins
+description: "CSS mixins let you define reusable style fragments and invoke them with custom values, reducing repeated declarations across stylesheets."
+spec: https://drafts.csswg.org/css-mixins-1/
+group: css
\ No newline at end of file
diff --git a/features/mixins.yml.dist b/features/mixins.yml.dist
new file mode 100644
index 00000000000..7f08d25ce2c
--- /dev/null
+++ b/features/mixins.yml.dist
@@ -0,0 +1,6 @@
+# Generated from: mixins.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support: {}