The prompt

Build a community invitation banner with Tailwind CSS. Use a max-w-4xl rounded-2xl card with a hairline border and a soft neutral-50 background, split into two columns from md up. The left column carries a small pill with a green pulse dot reading how many members are online, a heading inviting people into the community, a paragraph about what happens there, a dark join button and a muted line about the code of conduct. The right column is a stack of three faux chat messages, each a white rounded-xl card with a coloured avatar circle, a name and timestamp row, and one line of message text — one of them carrying a small reaction pill with an emoji-free glyph and a count. Rotate the cards very slightly in alternating directions with transform utilities so the stack feels informal, and straighten them on hover.

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