- Most tests inspired by samples on W3 Test suite
- https://github.com/w3c/csswg-test
[title~="hello world"]
- attribute selector with multiple values. see this
*|*[a|title^="si on"]
- source
- attribute selector with wildcard namespace and namespace inside attribute selector
Just wondering how these are handled. They should probably be parsed but just making sure they don't make things throw errors internally.