Migrating to v4: how to handle responsive variants defined in tailwind.config.js?

[Ramblurr]

In our tailwind.config.js in v3 we had a section like this:

...
    variants: {
        margin: ["responsive", "first"],
        opacity: ["responsive", "hover", "focus", "disabled"],
    },
...

In the new v4 docs I can't find any mention of the responsive variant.

How can this be migrated to a config-file-less v4?

[wongjn]

This doesn't do any thing in v3 - this was v2 (non-JIT) configuration. In v3+, all variants are registered for all utilities which makes this configuration obsolete. Thus you don't need to migrate this in any way.

[Ramblurr]

Indeed we have brought this config along since v2. Many thanks.