title: To "user-scalable=no" or not to "user-scalable=no"
body: <p>I've read different threads but never got to a clear conclusion, what are the differences, advantages and disadvantages of using <code>user-scalable=no</code> on case A or case B?</p>
  
  <p>I'm going to do a responsive website, which case is better then?</p>
  
  <p>CASE A:</p>
  
  <pre><code>&lt;meta name="viewport" content="width=device-width, user-scalable=no"&gt;
  </code></pre>
  
  <p>CASE B:</p>
  
  <pre><code>&lt;meta name="viewport" content="width=device-width"&gt; 
  </code></pre>