I recommend that you combine the blocks two by one in one slide so that the markup is like this:
<div class="slider-wrap"> <div class="slider"> <div class="slider__item"> <img src="http://fillmurray.com/200/200" alt="" /> <img src="http://fillmurray.com/200/200" alt="" /> </div> <div class="slider__item"> <img src="http://fillmurray.com/200/200" alt="" /> <img src="http://fillmurray.com/200/200" alt="" /> </div> <div class="slider__item"> <img src="http://fillmurray.com/200/200" alt="" /> <img src="http://fillmurray.com/200/200" alt="" /> </div> <div class="slider__item"> <img src="http://fillmurray.com/200/200" alt="" /> <img src="http://fillmurray.com/200/200" alt="" /> </div> </div> </div>
And do not forget to reduce the number of displayed slides:
$('.slider').slick({ slidesToShow: 3, centerMode: true });
Also, do not forget to make an internal element, for example, an inline block, so that it does not wrap onto the following line:
.slider__item transform: scale(0.8) transition: all 0.6s ease img display: inline-block margin: 0 10px
Full fork of your codepen: http://codepen.io/sandmanisdancing/pen/LbOyPa