dropdown

HTML

<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/semantic-ui/2.2.7/semantic.min.css">
<script src="https://cdn.jsdelivr.net/semantic-ui/2.2.7/semantic.min.js"></script>
<select name="skills" multiple="" class="ui fluid dropdown">
  <option value="">Skills</option>
  <option value="angular">Angular</option>
  <option value="css">CSS</option>
  <option value="design">Graphic Design</option>
  <option value="ember">Ember</option>
  <option value="html">HTML</option>
  <option value="ia">Information Architecture</option>
  <option value="javascript">Javascript</option>
  <option value="mech">Mechanical Engineering</option>
  <option value="meteor">Meteor</option>
  <option value="node">NodeJS</option>
  <option value="plumbing">Plumbing</option>
  <option value="python">Python</option>
  <option value="rails">Rails</option>
  <option value="react">React</option>
  <option value="repair">Kitchen Repair</option>
  <option value="ruby">Ruby</option>
  <option value="ui">UI Design</option>
  <option value="ux">User Experience</option>
</select>

JavaScript

$('select.dropdown').dropdown({
	'set selected': ['angular'])