css/css-sizing/calc-margins-fieldset-legend.html

<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-sizing-3/#intrinsic-sizes">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=823066">
<meta name="assert" content="Checks that calc() margins are resolved against zero for content sizing.">
<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
<p>Test passes if there is a filled green square.</p>
<fieldset style="width: min-content; height: 100px; margin: 0; padding: 0; border: none; background: green;">
  <legend style="margin-left: calc(10% + 100px); padding: 0;"></legend>
</fieldset>