title: Why jQuery does not work on my home (local) machine?
body: <p>My question isn't so much about why a specific bit of jQuery I've written isn't working as it is about no jQuery at all is working; not even working examples I've copied directly from places like W3 Schools.</p>
  
  <p>I use jQuery from time to time in my software development job and while I am by no means an expert, I am pretty familiar with it. For the first time I am trying to use jQuery in a home project and no matter what I do, none of it will work. The example I've included below is about as simple as I can think of, and even it will not work.</p>
  
  <pre><code>&lt;!DOCTYPE HTML&gt;
  &lt;html&gt;
  &lt;head&gt;
      &lt;script src="//ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"&gt;&lt;/script&gt;
  &lt;/head&gt;
  &lt;body&gt;
  &lt;div&gt;
      &lt;p&gt;Old Stuff&lt;/p&gt;
  &lt;/div&gt;
  &lt;script type="text/javascript"&gt;
     $('p').text('New Stuff');
  &lt;/script&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>What could possibly be wrong with this?</p>