css/css-contain/counter-scoping-001.html

<!doctype html>
<html lang=en>
  <meta charset=utf-8>
  <title>CSS-contain test: style containment and counter-increment</title>
  <link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net">
  <meta name=flags content="">
  <meta name=assert content="counter-increment is scoped to the subtree and creates a new counter at the root of the subtree">
  <link rel="match" href="reference/counter-scoping-001-ref.html">
  <link rel=help href="https://drafts.csswg.org/css-contain-1/#containment-style">

<style>
div {
  contain: style;
   counter-increment: n;
}
div::before, div::after {
  content: counters(n, '.') " ";
}
div::after {
  counter-increment: n 2;
}
</style>

<p>Test passes if the text below is "1 1.2" (not including the quotation marks).<p>
<div></div>