slick carousel show just 3 items of 6 code example
Example: slickcdn
<script src="https://cdnjs.cloudflare.com/ajax/libs/slick-carousel/1.9.0/slick.min.js" integrity="sha512-HGOnQO9+SP1V92SrtZfjqxxtLmVzqZpjFFekvzZVWoiASSQgSr4cw9Kqd2+l8Llp4Gm0G8GIFJ4ddwZilcdb8A==" crossorigin="anonymous"></script>