diff --git a/features/rhythmic-sizing.yml b/features/rhythmic-sizing.yml
new file mode 100644
index 00000000000..cb61aa6d0a3
--- /dev/null
+++ b/features/rhythmic-sizing.yml
@@ -0,0 +1,6 @@
+name: Rhythmic sizing
+description: The `line-height-step` CSS property creates consistent vertical rhythm by setting the spacing between body text baselines. It rounds taller lines like headings up to the next multiple of the body text spacing.
+spec: https://drafts.csswg.org/css-rhythm-1/
+group: text
+compat_features:
+  - css.properties.line-height-step
diff --git a/features/rhythmic-sizing.yml.dist b/features/rhythmic-sizing.yml.dist
new file mode 100644
index 00000000000..42b904eaf87
--- /dev/null
+++ b/features/rhythmic-sizing.yml.dist
@@ -0,0 +1,8 @@
+# Generated from: rhythmic-sizing.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support: {}
+compat_features:
+  - css.properties.line-height-step