diff --git a/Web.page b/Web.page
index 56e68b4..755c77a 100644
--- a/Web.page
+++ b/Web.page
@@ -1,5 +1,9 @@
 mark pilgrim: google's html5 evangelist
 
+CSS layout
+
+- `height:auto` inherits height from parent
+
 safe fonts
 
 - sans-serif