parcel-bundler / parcel-bundler/lightningcss
Minify CSS variable fallbacks
Open
Nobody has claimed this yet.
- Dominant language
- Rust
- Stars
- 7.7k
- Forks
- 302
- PR merge metrics
- No merged PRs in 30d
Description
Input:
#foo {
color: white;
}
#bar {
color: var(--c, white);
}
Current output:
#foo{color:#fff}#bar{color:var(--c,white)}
Expected output:
#foo{color:#fff}#bar{color:var(--c,#fff)}
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the two CSS inputs with the Lightning CSS minifier, then trace how custom-property fallbacks are handled. Done means the fallback value is minified consistently with the same declaration outside var(), producing the expected output shown in the issue.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- frontend, tooling
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 42/100