title: Bootstrap sidebar to mobile filter
body: <p>I am currently working on a bootstrap website where i have a sidebar(left) and the main content on the right. Now this is going perfect in desktop view, but when its seenable on mobile devices its all getting messed up, </p>
  
  <p>How can i make my sidebar/filter area to a mobile version with a dropdown filter? </p>
  
  <p>I want the filter area to be like an accordion that expands when you press the plus.</p>
  
  <p><a href="https://i.stack.imgur.com/qAuKA.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/qAuKA.jpg" alt="image of the desktop view and how i would like it in mobile"></a></p>
  
  <p>Hope someone can help me,</p>
  
  <p>with friendly greetings</p>