title: Check box checked property doesn't change in Chrome or Firefox Developer Tools
body: <p>Suppose you have a check box, which is checked. In Chrome or Firefox, when you click inspect element, in the HTML you will see:</p>
  
  <pre><code>&lt;input checked="checked" class="some-class" id="some-id" name="some-name" type="checkbox" value="some-value"&gt;
  </code></pre>
  
  <p>I expect, that when I click on the check box and uncheck it, the html will change and the <code>checked</code> property will disappear:</p>
  
  <pre><code>&lt;input class="some-class" id="some-id" name="some-name" type="checkbox" value="some-value"&gt;
  </code></pre>
  
  <p>However, that's not the case. Why?</p>