title: ASP.NET-4 IIS7.5 web.config serverRuntime element
body: <p>Whenever I add this line to my web.config in the system.webServer section:</p>
  
  <pre><code>&lt;serverRuntime /&gt;
  </code></pre>
  
  <p>With our without properties, IIS 7.5 just serves up a blank page instead of the website. I created a new empty Web Application using IIS and added the line to the web.config; blank page.</p>
  
  <p>What am I doing wrong?</p>