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You’re showing a CSS selector shorthand: py-1 [&>p]:inline. This looks like Tailwind CSS (or a Tailwind-like utility framework) using JIT arbitrary variants. Explanation:

  • py-1 applies padding-top and padding-bottom: 0.25rem (Tailwind’s scale; 1 = 0.25rem).
  • [&>p]:inline an arbitrary variant targeting direct child

    elements: it applies the inline display utility to any immediate child p (selector expands to & > p { display: inline; }).

  • Combined effect the element gets vertical padding of 0.25rem, and any direct child

    becomes display: inline.

Notes:

  • Requires a Tailwind JIT build that supports arbitrary variants (Tailwind v3+).
  • The exact spacing value depends on your Tailwind config if customized.
  • If you want to target all descendant p elements (not just direct children), use [&p]:inline or [&>p]:inline vs [&] depends on your conventions for descendants use [&_]? (Tailwind recommends [&*] isn’t standard; use [&*] only if configured). Safer explicit selector: [&>p]:inline for direct children; [&:where(:scope p)]:inline is not common.
  • In plain CSS equivalent:
    selector { padding-top: .25rem; padding-bottom: .25rem; }
    selector > p { display: inline; }

If you want exact code or alternatives (descendant selector, targeting first-child, responsive variants), tell me which.

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