title: Qt4 css - How to create file .QSS?
body: <p>I have a question.</p>
  
  <p>How do I create in my project folder with a file. <code>.QSS</code> ?</p>
  
  <p>At the option of creating new files do not have this extension!</p>
  
  <p>I would be very grateful for the help.</p>
  
  <p>Thank you.</p>