(CSS) preserve-3d gets highlighted incorrectly

[rebane2001]

Describe the issue
The transform-style: preserve-3d keyword gets highlighted incorrectly, turning the number 3 into a different color, presumably due to the -3 part.

Which language seems to have the issue?
css

Are you using highlight or highlightAuto?
highlight

Sample Code to Reproduce

div {
  transform-style: preserve-3d;
}

which hljs highlights into:

Expected behavior
Same as GitHub's highlighting - the preserve-3d part should be the same color.

Additional context
This doesn't repro for values such as f00-b4r, where the number is not directly following a hyphen.

[webdevsamran]

Hi team, I would like to fix this CSS highlighting issue.

In src/languages/css.js, the number lexer incorrectly matches -3 within preserve-3d, highlighting the digit as a number literal rather than part of the keyword identifier. I can refine the identifier and number regex boundaries so hyphenated property values like preserve-3d are highlighted as a single identifier, with test coverage.

Could you please assign this to me? Thanks!