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              <div class="heading-with-link">
  <a href="#touch-target-size" class="target-link"><svg class="octicon octicon-link" height="16" version="1.1" viewBox="0 0 16 16" width="16"><title>Permalink for 3.2 Touch Target Size and Spacing</title><path d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>
  <h2 id="touch-target-size">3.2 Touch Target Size and Spacing</h2>

<p>The high resolution of mobile devices means that many interactive elements can be shown together on a small screen. But these elements must be big enough and have enough distance from each other so that users can safely target them by touch.</p>

<p>Best practices for touch target size include the following:</p>

  <li>Ensuring that touch targets are at least 9 mm high by 9 mm wide.</li>
<li>Ensuring that touch targets close to the minimum size are surrounded by a small amount of inactive space.</li>
<p>Note: This size is not dependent on the screen size, device or resolution. Screen magnification should not need to be used to obtain this size, because magnifying the screen often introduces the need to pan horizontally as well as vertically, which can decrease usability.</p>
              a.target-link {
  display: inline-block;
  padding: 0.25em;
a.target-link + h2 {
  display: inline-block;
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