<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="container"> <div class="row"> <div class="col-md-12"> <ul class="list"> <li>1</li> <li>2</li> <li>3</li> <li>4</li> <li>5</li> <li>6</li> <li>7</li> <li>8</li> <li>9</li> <li>10</li> <li>11</li> <li>11</li> <li>11</li> <li>11</li> <li>11</li> <li>11</li> <li>11</li> <li>11</li> </ul> </div> </div> </div>

ul.list { -webkit-column-count: 5; -webkit-column-fill: auto; -moz-column-count: 5; -moz-column-width: 200px; -moz-column-fill: auto; column-gap: 10px; background-color: #ccc; padding: 16px 0; list-style: none; padding:10px; } ul.list > li { border: 1px solid #000; padding:10px; margin-bottom:10px; }