title: What is -webkit-focus-ring-color?
body: <p>I want to reproduce the <code>outline</code> effect for focused input boxes in webkit to non-webkit browsers. I found <a href="http://codesearch.google.com/codesearch#OAMlx_jo-ck/src/third_party/WebKit/Source/WebCore/css/html.css" rel="noreferrer">here</a> the default CSS used in webkit. The lines of interest are:</p>
  
  <pre><code>:focus {
      outline: auto 5px -webkit-focus-ring-color
  }
  </code></pre>
  
  <p>I tried making a search in the whole code for the definition <code>-webkit-focus-ring-color</code> <a href="http://codesearch.google.com/codesearch#search/&amp;q=%22-webkit-focus-ring-color%22&amp;exact_package=chromium&amp;type=cs" rel="noreferrer">here</a> but could  not find it anywhere.</p>