title: Angled lines on background CSS
body: <p>I want to create this kind of design:</p>
  
  <p><a href="https://i.stack.imgur.com/aQspI.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/aQspI.jpg" alt="Design preview"></a></p>
  
  <p>How can I create this angled lines levels?</p>
  
  <p>Right now I am designing with css/sass and Bootstrap.
  My starting point is this:
  <a href="http://demo.themefisher.com/demos/?theme=vex" rel="nofollow noreferrer">http://demo.themefisher.com/demos/?theme=vex</a></p>
  
  <p>As you can see, it his built to seperate the areas by levels, I would just this levels to become a parallelogram instead of an ordinary rectangle</p>