Older browser parsing issue for breakpoints

[SahilKhan30]

What version of Tailwind CSS are you using?

v4.0.3

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

Vite 5.4.11

What version of Node.js are you using?

v20.9.0

What browser are you using?

Chrome (Version 109.0.5414.119)

What operating system are you using?

Ubuntu

Describe your issue

While using tailwind css on older browser, especially on chrome 109 or below versions, the breakpoints like md, sm are not working as intended.

.sm:col-span-12 {
@media (width >= 40rem) {: ;
grid-column: span 12 / span 12;
}: ;
}
above is what's being shown in the developer's inspect mode.
it is adding semi-colon after each line while parsing in the browser, making it invalid property.

On newer version it is being parsed properly and works fine.
.sm:col-span-12 {
@media (width >= 40rem) {
grid-column: span 12 / span 12;
}
}

So, is there any way fix the above issue for older browsers?

[philipp-spiess]

Hey! So Tailwind CSS v4 currently requires Chrome 111 and above, you can read more about this in our compatibility guide: https://tailwindcss.com/docs/compatibility

For support in older browsers, there are no official ways right now but some folks found workarounds, e.g. check out this thread: #14119