JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/dojo/1.5/dijit/themes/claro/claro.css">
<body class="claro">
    <select dojoType="dijit.form.Select" style="width: 400px">
        <option value="1">one</option>
    </select>
</body>

JavaScript

dojo.require('dijit.form.Select');

dojo.ready(function() {
    var s2 = new dijit.form.Select({
        id: 's2',
        style: { width: '400px' },
        options: [{label: 'one', value: 1}]
    }).placeAt(dojo.body());
});