The prompt

Create a milestone timeline with Tailwind CSS laid out horizontally on large screens and vertically below md. Draw a hairline running through the middle with five nodes on it: each node is a small circle, filled dark for the past and outlined for the current year, with a card above or below alternating position. Every card is bordered and rounded-xl and contains a monospaced year, a large figure, a metric label, and one line of context. Use figures like first hundred customers, one million events a day, a Series A, ten thousand teams and one billion decisions. Give the most recent card a neutral-900 background with inverted text. Below the timeline, a summary strip of three cells separated by vertical rules showing years operating, total customers and people employed, each with a large figure and a muted label.

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