css/css-flexbox/flexbox-baseline-nested-001.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>CSS Test: Baseline of nested flex containers with stretched textfield inside</title>
    <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
    <link rel="author" title="Mozilla" href="http://www.mozilla.org/">
    <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1672640">
    <link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#flex-baselines">
    <link rel="match" href="flexbox-baseline-nested-001-ref.html">

    <style>
      .ib {
        display: inline-block;
      }
      .outerFlex {
        display: flex;
      }
      .innerFlex {
        display: flex;
        height: 200px;
      }
    </style>
  </head>
  <body>
    abc
    <div class="ib">
      <div class="outerFlex">
        <div class="innerFlex">
          <input value="def">
        </div>
      </div>
    </div>
  </body>
</html>