diff --git a/README.md b/README.md
index ff7e94f305a..693a61a6a94 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,9 @@
+
+
+
diff --git a/apps/www/content/docs/components/splitter.mdx b/apps/www/content/docs/components/splitter.mdx
index d64a6ba6c1f..dcb06720473 100644
--- a/apps/www/content/docs/components/splitter.mdx
+++ b/apps/www/content/docs/components/splitter.mdx
@@ -139,6 +139,13 @@ In addition to percentages, `defaultSize`, `minSize`, and `maxSize` accept CSS
units like `px`, `em`, `rem`, `vh`, and `vw`. This is useful for panels that
should keep a fixed width, such as a navigation sidebar.
+:::warning
+
+CSS-unit sizes are measured on the client, so panels using them can shift after
+hydration. Use percentage sizes for a stable server-rendered layout.
+
+:::
+
### Resize Behavior