title: Element link is missing required attribute properly
body: <p>I've got 3 of this error when validating. </p>
  
  <p>DOCTYPE: HTML5</p>
  
  <p><strong>Error: Element link is missing required attribute property.</strong></p>
  
  <pre><code>&lt;link type="text/css" href="/wp-content/themes/aykamakina/bxslider/jquery.bxslider.css" rel="stylesheet" /&gt;
  &lt;script src="/wp-content/themes/aykamakina/tabs/js/easyResponsiveTabs.js" type="text/javascript"&gt;&lt;/script&gt;
  &lt;link rel="stylesheet" href="/wp-content/themes/aykamakina/fancybox/source/jquery.fancybox.css" type="text/css" media="screen" /&gt;
  &lt;link rel="stylesheet" type="text/css" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css"&gt;
  </code></pre>
  
  <p>So I've used rel - type - href and one of them has the media attribute. What others I have to use in this case?</p>
  
  <p>And I don't get why I don't get the same error for the other links I've used only with the same attributes...
  Thanks for your time! </p>