diff --git a/content/netcanv.dj b/content/netcanv.dj
index 004be21..6bdc25d 100644
--- a/content/netcanv.dj
+++ b/content/netcanv.dj
@@ -488,6 +488,8 @@ Try the following sequence of instructions:
 1. Pop
 1. Pop
 
+That's how you lay out two rectangles next to each other.
+
 At any given moment, there is a stack of active rectangles.
 Each rectangle has either a horizontal or a vertical layout (→ or ↓ in the visualisation), which determines the direction in which elements are laid out inside it.