JSFiddle - React, Tailwind, and code Playground

HTML

<div class="form-group">
  <label for="sel1">Select list:</label>
  <select class="form-control" id="sel1">
    <option>1</option>
    <option>2</option>
    <option>3</option>
    <option>4</option>
    <option>5</option>
     <option>6</option>
  </select>
</div>