[css] improve "unknown property" error message

[magicds]

• VSCode Version: 1.18.0
• OS Version: Windows 10 x64

Steps to Reproduce:

1. In a css file
2. Such as word-break and word-wrap

Reproduces without extensions: Yes

I disabled all extensions, the question remains.

[aeschli]

Can you paste the code snippet that reproduces the issue? This works for me, word-break, word-wrap are both supported.

[magicds]

Thank you very much.

I find the cause about that: before the css property, the chars is not four spaces or one tab, it is two 12288 (unicode).

The code snippet :

.mini-outputtext {
　　word-break: break-all;

　　word-wrap: break-word;
}

Maybe the '12288' and the css property are taken as one property.

[magicds]

It is not linter's problem, but think the tips can be more specific.

[aeschli]

Yes, in CSS only LF, CR, TAB and space are whitespace characters.
I'll improve the error message to include the full invalid name. This should make it clear.