<!DOCTYPE html>
<html>
  <meta charset="utf-8">
  <title>Tests un-fragmentable flex item is pushed to the next column without overflowing the flex container.</title>
  <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
  <link rel="author" title="Mozilla" href="https://www.mozilla.org/">
  <link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#pagination">
  <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1743890">
  <link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
  <style>
  .multicol {
    column-count: 4;
    column-gap: 0;
    column-fill: auto;
    background: red;
    width: 100px;
    height: 100px;
  }

  .multicol > div {
    background: green;
  }

  .flexbox {
    display: flex;
    flex-direction: column;
    height: 340px;
    border: 5px solid green;
    justify-content: end;
  }

  .flexbox > div {
    contain: size;
    width: 15px;
    height: 50px;
  }
  </style>

  <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
  <div class="multicol">
    <!-- This div makes the flexbox not at the top of first column. -->
    <div style="width: 50px; height: 50px;"></div>

    <div class="flexbox">
      <div></div>
      <div></div>
    </div>
  </div>
</html>
