diff --git a/TODO.md b/TODO.md
index 4190d80..214faae 100644
--- a/TODO.md
+++ b/TODO.md
@@ -65,7 +65,12 @@
 
 - Basic widgets (button, label, text input)
 - Layout
+  - Containers
+    - ~~VerticalContainer~~
+    - ~~HorizontalContainer~~
+    - ~~GridContainer~~
+    - FlexContainer
+  - Positioning (anchors)
 - Input propagation
-- Styling.
 - Basic input elements (button, text field, toggle).
-- Containers (vertical and horizontal).
+- Styling.