placeholder-inherit.html | Explore in Territory

<!doctype html>
<title>CSS Pseudo Test: ::placeholder inherits from its originating element</title>
<link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#treelike">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
  input { background-color: green; }
  input::placeholder {
    color: green;
    background-color: inherit;
  }
</style>
<input id="inp" type="text">
<script>
  test(() => {
    const style = getComputedStyle(inp, "::placeholder");
    assert_equals(style.color, "rgb(0, 128, 0)", "Check that ::placeholder is supported via color");
    assert_equals(style.backgroundColor, "rgb(0, 128, 0)", "::placeholder inheriting background-color");
  }, "::placeholder should inherit from its originating element");
</script>

chromium/third_party/blink/web_tests/external/wpt/css/css-pseudo/placeholder-inherit.html