OUTPUT IS ALWAYS A SINGLE `.html` FILE (never `.md`, never separate CSS/JS files) containing a live, tunable demo of one CSS/JS technique. Use this skill whenever the user asks for an animation playground, animation sandbox, "let me tune the easing", "show me different timings of X", interactive dem
OUTPUT IS ALWAYS A SINGLE `.html` FILE (never `.md`, never separate CSS/JS files) containing a live, tunable demo of one CSS/JS technique. Use this skill whenever the user asks for an animation playground, animation sandbox, "let me tune the easing", "show me different timings of X", interactive demo of one effect, CSS demo, transition tuner, or any artifact whose primary shape is "one thing anima