How to allow css like ::-webkit-scrollbar ?

[sikkamukul]

Attaching the sample code :-
::-webkit-scrollbar-thumb {
background: #888
}
Is being removed on sanitization from style tag
Kindly help to retain it after sanitization

[mganss]

Unfortunately, this currently doesn't work due to an issue within AngleSharp.Css. See AngleSharp/AngleSharp.Css#98

Perhaps you can work around the issue by modifying your use case. Do you really want to allow users to input whole style sheets containing vendor specific selectors?

[sikkamukul]

Yes, this use case allows users to enter psuedo elements in css style. Any workaround you would suggest for the same?

[mganss]

No, can't think of a workaround 🤷🏻 Hopefully, this gets addressed by AngleSharp.Css soon.

[pragatibaheti]

Related doubt. Also, does it consider nested CSS classes (scss) in style tags while sanitization?

.some-class {
  &.another-class {}
}

[mganss]

@pragatibaheti No, this isn't even supported by any browser: https://caniuse.com/css-nesting

[mganss]

Fixed in 7.0.473 (through AngleSharp 0.16.3)