The prompt

Create a sticky bottom conversion bar with Tailwind CSS: a fixed bar pinned to the bottom of the viewport with a blurred translucent dark background and a top border. Inside a max-width row, show a bold short offer on the left with a strikethrough original price and a highlighted discounted price, a countdown chip in the middle, a primary light button on the right, and a small dismiss X. Hide the countdown chip below sm. Then add JavaScript that ticks the countdown down to a fixed deadline once per second in days/hours/minutes/seconds, swaps the chip to an "Offer ended" state when it reaches zero, and dismisses the bar with a slide-down transition — remembering the dismissal in localStorage so it stays gone on the next visit.

Paste it into Claude, Cursor, v0 or any AI coding tool. Prefer the finished markup? Open the Tailwind source.