console
$('.banner').slick({
dots: false,
arrows: false,
autoplay: true,
slidesToShow: 4,
autoplaySpeed: 1000
});
<script src="https://cdn.bootcss.com/jquery/2.2.2/jquery.min.js"></script>
<script src="https://cdn.bootcss.com/slick-carousel/1.8.1/slick.min.js"></script>
<link href="https://cdn.bootcss.com/slick-carousel/1.8.1/slick.min.css" rel="stylesheet">
<div class="banner">
<a href="" class="item" style="background-image:url()"><img src="https://picsum.photos/192/200" alt="" /></a><a href="" class="item" style="background-image:url()"><img src="https://picsum.photos/192/200" alt="" /></a><a href="" class="item" style="background-image:url()"><img src="https://picsum.photos/192/200" alt="" /></a><a href="" class="item" style="background-image:url()"><img src="https://picsum.photos/192/200" alt="" /></a><a href="" class="item" style="background-image:url()"><img src="https://picsum.photos/192/200" alt="" /></a><a href="" class="item" style="background-image:url()"><img src="https://picsum.photos/192/200" alt="" /></a>
</div>