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                <span>За замовчуванням, стиль межі (між стовпчиками у багатоколонковому тексті, як тут) дорівнює <em>none</em>. Тобто не показується.</span>
<div class="multicol">
  <p>Lorem ipsum dolor sit, amet consectetur adipisicing elit. Facere quia debitis corporis reprehenderit, quo, sequi ad inventore officia quos dolorem, error nam omnis. Odio corporis vel pariatur unde, ullam perspiciatis.</p>

<span>Але ми можемо змінити це, оголовиши властивість <code>column-rule-style</code> та прописавши для неї потрібний стиль. Наприклад, для цього контейнера був прописаний стиль <em>solid</em> (суцільна лінія).</span>
<div class="multicol style">
  <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Repellendus laboriosam iste exercitationem maiores totam unde? Adipisci, dicta sit a non aliquid voluptatem nam hic nesciunt accusamus! Explicabo enim reprehenderit nostrum.</p>


                body {
  font-family: sans-serif;
  line-height: 1.45;

p {
  margin-top: 0;

.multicol {
  background: #f1f1f1;
  padding: 10px;
  margin-bottom: 16px;

  -webkit-column-gap: 38px;
     -moz-column-gap: 38px;
          column-gap: 38px;

  -webkit-column-count: 3;
     -moz-column-count: 3; 
          column-count: 3; 

  -webkit-column-rule-color: gold;
     -moz-column-rule-color: gold;
          column-rule-color: gold;

  -webkit-column-rule-width: 4px;
    -moz-column-rule-width: 4px;
         column-rule-width: 4px;
} {
  -webkit-column-rule-style: solid;
     -moz-column-rule-style: solid;
          column-rule-style: solid;