Challenge 2: Why a Copied CSS Snippet Doesn't Make a Button Actually Work — Solution Walkthrough

The answer:

Per this chapter's own warning box, Dev Mode's generated code snippets
capture a selected element's own visual styling — dimensions, colors,
spacing — as a structural starting point, not a complete
implementation. The CSS snippet describes what the button looks like;
it says nothing at all about what should happen when it's clicked.

Why this is expected, not a bug:

Real interactivity — what a click actually triggers, what data gets
sent or processed — is genuine development work that has to be written
separately, using whatever framework or logic the actual application
runs on. Dev Mode has no way of knowing what a button is supposed to
do functionally; it only knows what the button is supposed to look
like.

Why this matches this chapter's own broader point:

This chapter explicitly frames Dev Mode as reducing guesswork and
back-and-forth over visual details, not as eliminating the need for a
developer's own judgment and implementation work. Genuine interactive
behavior, accessibility handling, and how the element fits into the
larger codebase all still require real development on top of the
Dev Mode snippet.

WHY THIS WORKS AS AN ANSWER
------------------------------
This exercise checks that a Dev Mode CSS snippet's own scope (visual
styling only) is correctly distinguished from actual functional
behavior, which still requires genuine development work.