chromium/third_party/blink/web_tests/external/wpt/css/css-flexbox/percentage-max-height-003.html

<!doctype html>
<link rel="author" title="David Grogan" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-flexbox/#definite-sizes">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<link rel="bookmark" href="https://crbug.com/1107604">
<meta name="assert" content="Replaced children with % max-height are sized correctly when they are deeply nested flex items with imposed definite heights." />

<style>
#reference-overlapped-red {
  position: absolute;
  background-color: red;
  width: 100px;
  height: 100px;
  z-index: -1;
}

#outer-flexbox {
  display: flex;
  width: 200px;
  height: 200px;
  flex-direction: column;
  align-items: flex-start;
}

#middle-flexbox {
  display: flex;
  height: 50%;
  /* This needs to be stretched for repro */
  align-items: stretch;
  min-height: 0px;
}

#inner-flexbox {
  display: flex;
  align-items: flex-start;
  min-width: 0px;
}

img {
  max-height: 100%;
  min-width: 0px;
}
</style>

<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div id="reference-overlapped-red"></div>

<div id=outer-flexbox>
  <div id=middle-flexbox>
    <div id=inner-flexbox>
    <!-- This is a 400x400 green square. It's inline so that there is no
         raciness when an image resource loads, which affects chrome's behavior
         on this test. -->
    <img src="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 400 400' width='400' height='400'><rect width='400' height='400' fill='green'/></svg>">
    </div>
  </div>
</div>