Side bar of a club

How to create a sidebar of a club? If anyone knows, please reply.

You need to be SA. Then, it's in "club settings", "custom sidebar" tab.

You can also click on small "edit" icon on the top-right of the sidebar.

I am the owner.

Want to make it like this..

HTML.

Can you help.

https://www.chess.com/club/the-club-of-129-countries/join

Bro

chess.com not allowed <style> tag for disable dangerous CSS attributes