title: How to flip background image using CSS?
body: <p>How to flip any background image using CSS? Is it possible?</p>
  
  <p>currenty I'm using this arrow image in a <code>background-image</code> of <code>li</code> in css</p>
  
  <p><img src="https://i.stack.imgur.com/ah0iN.png" alt="enter image description here"></p>
  
  <p>On :<code>visited</code> I need to flip this arrow horizontally. I can do this to make another image of arrow <strong>BUT</strong> I'm just curious to  know is it possible to flip the image in CSS for <code>:visited</code></p>