No information about the unselectable HTML attribute.

[rogeriotaques]

It seems that the unselectable attribute cannot be checked on caniuse.com!

[Fyrd]

This seems to be an attribute only supported on older versions of IE and never standardized. The modern, cross-browser CSS property to accomplish this is via user-select: none

[rogeriotaques]

Indeed.

Perhaps, this would be out of scope for caniuse.com, but IMHO it would be super useful to be able to find such an explanation when searching for such a not standard (and even deprecated) attribute. 😅

If out of scope, please feel free to close this issue. 🙂

[Fyrd]

Not out of scope, but not high on the priority list either. Will keep it open in case other folks run into it.