Curious why we're using custom styling for this, breaking consistency with other notebooks?

Just flagging, it looks like the Rollup config link is broken: https://github.com/observablehq/examples/tree/main/react-file-attachment

Thank you for the heads up! This is a permissions issue on the examples repo; we are on it and will let you know when it has been fixed! Thanks for the patience :)

This has been fixed! Thanks again for flagging.

This needs clarification. What does "interpolating that CSS into the HTML of the cell that depends on it"? An example would be amazing!

Sure thing! I made a quick example for you. Let me know if this helps. https://observablehq.com/d/b309615ed0fbe661

That is awesome! thanks! any way to link it in this great notebook @troptucker ?

I just added!