title: Double font size on mobile Device
body: <p>maybe that problem is simple, but I have no Idea how to solve this, and also no real Idea what I should type in to google ;)</p>
  
  <p>In my CSS I have the following declaration:</p>
  
  <pre><code>body { font-size: 100%; }
  </code></pre>
  
  <p>No, because the new high-density devices show my fonts very small, I want that declaration to be set to something like:</p>
  
  <pre><code>body { font-size: 200%; }
  </code></pre>
  
  <p>What is the simplest way to do this, without creating/linking additional files or doing some serverside-processing of the user agent?</p>