title: Left arrow html and css
body: <p>I need code for this functionality.
  By default, it should be like right headed arrow <img src="https://i.stack.imgur.com/yMatp.png" alt="Right arrow"> and when i click it should be down headed arrow.<img src="https://i.stack.imgur.com/M3Bew.png" alt="down arrow"></p>
  
  <p>Thanks,
  Ram</p>