Arbitrary values for 'grid-cols' generate incorrect CSS

[utherpally]

What version of Tailwind CSS are you using?

v3.4.0

What build tool (or framework if it abstracts the build tool) are you using?

@solidjs/start 0.4.2

What version of Node.js are you using?

v18.19.0

What browser are you using?

Firefox

What operating system are you using?

Linux (NixOS 24.05.20231211.a9bf124)

Reproduction URL

Tailwind Play link

Describe your issue

<div class="grid-cols-[[full-width-start]_minmax(1rem,1fr)_[content-start]_min(100%-2rem,60rem)_[content-end]_minmax(1rem,1fr)_[full-width-end]]" />

CSS generated:

grid-template-columns: [full-width-start] minmax(1rem,1fr) [content - start] min(100% - 2rem,60rem) [content - end] minmax(1rem,1fr) [full-width-end];

Expected:

No spaces in content - start and content - end

grid-template-columns: [full-width-start] minmax(1rem,1fr) [content-start] min(100% - 2rem,60rem) [content-end] minmax(1rem,1fr) [full-width-end];

Related #12281

[thecrypticace]

This should be fixed by #12704, and will be available in the next release.

You can try it before then by using our insiders build — which should be ready in ~15m:

npm install tailwindcss@insiders