title: swiperjs - how to keep prev and next slider in sight but not centered current one
body: <p><a href="https://i.stack.imgur.com/yAJ4i.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/yAJ4i.png" alt="enter image description here"></a><br>
  I'm using <a href="http://idangero.us/swiper/get-started/#.WTPU4ROGNcA" rel="nofollow noreferrer">swiperjs</a>, and what to stay part of the prev slider in the window, but not center the current one<br>
  I've tried<code>spaceBetween</code>, <code>centeredSlides</code> and <code>slidesOffsetBefore</code>, but none of these satisfied.<br>
  here is a  <a href="https://jsfiddle.net/z33jqt4s/1/" rel="nofollow noreferrer">demo</a>
  , can anyone help ?</p>