File: is-where-pseudo-elements.html

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<!DOCTYPE html>
<title>:is() combined with pseudo elements</title>
<link rel="help" href="https://drafts.csswg.org/selectors-4/#matches">
<link rel="match" href="is-where-pseudo-elements-ref.html">
<style>
  :is(#a, #c) + :is(main :is(#b, #d))::before {
    content: "before ";
    color: green;
  }
  :is(#d + div, #d ~ #h)::after {
    content: " after";
    color: green;
  }
  :is(main > #a, #b)::first-letter {
    color: blue;
  }
  :is(:where(main > div + #g, #k + #l))::first-line {
    color: magenta;
  }
</style>
<main id=main>
  <div id=a>a</div>
  <div id=b>b</div>
  <div id=c>c</div>
  <div id=d>d</div>
  <div id=e>e</div>
  <div id=f>f</div>
  <div id=g>g</div>
  <div id=h>h</div>
  <div id=j>j</div>
  <div id=k>k</div>
  <div id=l>l<br>l2</div>
</main>