wpt/css/css-sizing/intrinsic-percent-replaced-012.html at master · web-platform-tests/wpt · GitHub

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<!DOCTYPE html>
<meta charset="utf-8">
<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-sizing-3/#intrinsic-sizes">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1231059">
<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
<meta name="assert" content="This test verifies that the inner div's padding is resolved against the outer div's width when computing its max-content width.">

<style>
.outer {
  width: 25px;
  height: 50px;
}
.inner {
  box-sizing: border-box;
  width: max-content;
  height: 100%;
  padding-top: 100%; /* 25px */
  background: green;
}
canvas {
  height: 100%;
}
</style>

<p>Test passes if there is a filled green square.</p>
<div class="outer">
  <div class="inner">
    <!-- display:block on <canvas> exercises a different code path in Firefox. -->
    <canvas width="40" height="10" style="display: block;"></canvas>
  </div>
</div>
<div class="outer">
  <div class="inner">
    <canvas width="40" height="10"></canvas>
  </div>
</div>