title: How to detect CSS inheritance source?
body: <p>So far, I can only tell if a property is inherited or not, but I need to know the source of inheritance, (for ex, which CSS file caused the final value ?) is this possible ? </p>
  
  <p>Is there a handy tool for this ?</p>
  
  <p><strong>EDIT</strong></p>
  
  <p>Here is what I get in chrome Computed Style (show inheritance)
  See the direction property, there is no info about its inheritance source
  <img src="https://i.stack.imgur.com/6eEra.png" alt="enter image description here"></p>