chromium/third_party/blink/web_tests/external/wpt/css/css-contain/contain-size-042.html

<!DOCTYPE html>

  <meta charset="UTF-8">

  <title>CSS Containment Test: 'contain: size' applies to inline replaced element (basic)</title>

  <link rel="author" title="GĂ©rard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
  <link rel="help" href="https://www.w3.org/TR/css-contain-1/#containment-size">
  <link rel="match" href="reference/contain-size-022-ref.html">

  <meta content="This test checks that when laying out an inline replaced element with 'contain: size', the inline replaced element must be treated as having an intrinsic width and height of 0." name="assert">

  <style>
  img#blue-test
    {
      background-color: blue;
      contain: size;
      padding: 50px;
    }
  </style>

  <p>This test passes if the painted blue area is <strong>exactly as tall as</strong> the orange square.

  <div><img id="blue-test" src="support/blue-100x100.png" alt="Image download support must be enabled"> <img id="orange-reference" src="support/swatch-orange.png" width="100" height="100" alt="Image download support must be enabled"></div>