fix: ParserError occurs when a css variable is multiplied by a negative number

[uhobnil]

ParserError occurs when a css variable is multiplied by a negative number in React App.

[hyrious]

FYI a{width:calc(var(--s)*-1)} is a valid CSS and modern browsers / processors (like PostCSS, SASS) all support it. I'm ok to support some old toolchain / runtime if a single byte's change is enough.

[uhobnil]

FYI a{width:calc(var(--s)*-1)} is a valid CSS and modern browsers / processors (like PostCSS, SASS) all support it. I'm ok to support some old toolchain / runtime if a single byte's change is enough.

You were right

It seems that my version of react is low

a single byte's change is enough, It would be nice to support some old toolchains

[sindresorhus]

Sorry, I don't plan to support older toolchains. It's enough work with this project for modern ones. It may seem like a simple thing, but ever added line of code add maintenance overhead.