JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css">
<select class="form-control" id="numMess" onchange="loadSubdata(this)">
     <option value="0">Выберите объект</option>
     <option value="1">Станции и стыки</option>
     <option value="2">Поезда</option>
     <option value="3">Вагоны</option>
</select>

CSS

option{
  padding:10px;
}