#d{color:#000;font-family:arial;font-size:40px}button[data-action=INCREMENT]{color:#fff;background:green;padding:10px}button[data-action=DECREMENT]{color:#fff;background:red;padding:10px}button[data-action=RESET]{color:#fff;background:gray;padding:10px}button[data-action=ADD_FOUR]{color:#fff;background:purple;padding:10px}button[data-action=DOUBLE]{color:#fff;background:navy;padding:10px}