JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/select2/4.0.0-rc.2/js/select2.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
<div class="container">
    <div class="row">
        <div class="col-md-8">
            <form>
                <div class="form-group">
                    <select class="form-control">
                        <option>optionlyn</option>
                        <option>optionnik</option>
                        <option>optionva</option>
                        <option>optiondim</option>  
                    </select>
               </div>
            </form>
        </div>
    </div>
</div>

CSS

@import url('//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap-theme.min.css');
@import url('//cdnjs.cloudflare.com/ajax/libs/select2/4.0.0-rc.2/css/select2.min.css');

JavaScript

$('select').select2();