e. Be sure to leave a space between the icon and text for proper padding.</p>
  <div class="bs-callout bs-callout-danger">
    <h4>Don't mix with other components</h4>
    <p>Icon classes cannot be directly combined with other components. They should not be used along with other classes on the same element. Instead, add a nested <code>&lt;span&gt;</code> and apply the icon classes to the <code>&lt;span&gt;</code>.</p>
  </div>
  <div class="bs-callout bs-callout-danger">
    <h4>Only for use on empty elemen