title: CSS font-family property IDE (PHPStorm) warning
body: <p>I'm using PHPStorm 8.0.3 and in my CSS file I get warning for <code>font-family</code> rule.</p>
  
  <blockquote>
    <p>This inspection verifies that the CSS font-family property contains a
    generic font name as a fallback alternative.</p>
  </blockquote>
  
  <p>I added the font as follows:</p>
  
  <pre><code>.my_text {
      font-family: 'DINPro-Medium';
  }
  
  @font-face {
      font-family: 'DINPro-Medium';
      src: url(font/DINPro-Medium.eot);
      src: url(font/DINPro-Medium.eot?#iefix) format('embedded-opentype'),
      url(font/DINPro-Medium.ttf) format('truetype'),
      url(font/DINPro-Medium.woff) format('woff'),
      url(font/DINPro-Medium.svg#DINPro-Medium) format('svg');
      font-weight: normal;
      font-style: normal;
  }
  </code></pre>
  
  <p>I can not understand what the problem is.</p>