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nit: there's a `details { &:open {}}` in there instead of `dialog{ &[open] {}}` or `dialog[open] {}`

Unfortunately, there are multiple other mistakes in this article, and other similar dialog and popover articles from CSS tricks. Two in this one stand out: open() isn't a method on dialog, and popovers DO have automatic light dismiss.

I don't mean this to come across as overly negative to the specific author but the corrections were never made to the previous article, so it gets a bit frustrating.