title: Chrome developer tools Style tab showing faded CSS definition, why?
body: <p>I've been using Chrome for a long time now and I've never (well not that I can recall) come across CSS definitions in the Style panel that are faded. The selector hasn't been defined else where.</p>
  
  <p>Example:</p>
  
  <p><a href="https://i.stack.imgur.com/2Ktef.png" rel="noreferrer"><img src="https://i.stack.imgur.com/2Ktef.png" alt="enter image description here"></a></p>
  
  <p>(Edit: Just to be clear, I'm not referring to the user agent stylesheet)</p>
  
  <p>I can't figure out why it is faded and what this means. The definition appears to be editable but any changes to the values do not persist (i.e. as soon as I click off, it reverts back to original value) and has no effect on the web page.</p>
  
  <p>I couldn't find any reference to this in the <a href="https://developers.google.com/chrome-developer-tools/docs/elements-styles#styles_view" rel="noreferrer">documentation</a> for the tool. Can any of you kind folk shed any light on this?</p>