CodePen Embed - gRyWrw

<div class="content">
  <p>Ліва межа цього елменту стилізована <br> за допомогою властивості <strong><code>border-left-style</code></strong>.</p>
</div>

.content {
  font-family: sans-serif;
  line-height: 1.45;
  font-size: 17px;
  padding-left: 16px;
  
  border-left-width: 10px;
  border-left-color: #666;
  border-left-style: double;
}

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