r users won&#39;t accidentally focus on &quot;mystery elements&quot;. Managing tab index on every
child control can be complex and affect performance, so it’s best to just stick with the default
<code>display: none</code> CSS. See the <a href="http://www.w3.org/TR/aria-in-html/#fourth-rule-of-aria-use">fourth rule of ARIA use</a>.</p>
<h3 id="example">Example</h3>
<pre><code class="lang-css">.ng-hide {
  display: block;
  opacity: 0;
}
</code></pre>
<pre><code class="lang-html">&lt;div ng-show=&quot;false