JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://silviomoreto.github.io/bootstrap-select/bootstrap-select.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
<script src="https://silviomoreto.github.io/bootstrap-select/bootstrap-select.min.js"></script>
<select multiple title="Empty" class="selectpicker">
    <option>1</option>
    <option>2</option>
    <option>3</option>
    <option>4</option>
</select>

<select multiple title="No Value" class="selectpicker">
    <option>1</option>
    <option>2</option>
    <option>3</option>
</select>

JavaScript

$('.selectpicker').selectpicker();