:within($ns.className)

[crcn]

Should be able to do this:

<import src="./atoms.pc" as="atoms" />

<div>
  <style>
    &:within($atoms.float) {
      color: red;
    }
  </style>
</div>

Currently this is necessary as an alternative:

<import src="./atoms.pc" as="atoms" />

<div>
  <style>
    &:within(:global(.float)) {
      color: red;
    }
  </style>
</div>