wpt/css/css-flexbox/flex-basis-item-margins-001.html at master · web-platform-tests/wpt · GitHub

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<!DOCTYPE html>
<title>Flexbox: margins and available space</title>
<link rel="author" title="David Grogan" href="mailto:dgrogan@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-flexbox/#algo-main-item" title="Case E">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<meta name="assert" content="An item's inline margins are subtracted from available space when laying out to determine flex-basis in a column container." />

<style>
.inline-block {
  display: inline-block;
  width: 40px;
  height: 50px;
}

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

<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>

<div id="reference-overlapped-red"></div>

<div style="display: flex; flex-direction: column; width: 100px; background: green;">
  <!-- 21px makes the inline-blocks wrap -->
  <div style="margin-right: 21px; flex: 0 0 auto; line-height: 0px;">
    <div class="inline-block"></div><div class="inline-block"></div>
  </div>
</div>