JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://extjs.cachefly.net/ext-3.4.0/resources/css/ext-all.css">

JavaScript

Ext.QuickTips.init();
var cb = new Ext.form.ComboBox({
    name: name,
    hideOnSelect: false,
    triggerAction: 'all',
    mode: 'local',
    width: 200,
    store: new Ext.data.JsonStore({
        id: "myCombo",
        fields: ['value', 'text'],
        data: [
            { value: 1, text: 'one'},
            { value: 2, text: 'two'},
            { value: 3, text: 'three'}
        ]
    }),
    listWidth: 250,
    valueField: 'value',
    displayField: 'text',
    renderTo: Ext.getBody(),
    tpl: '<tpl for="."><div ext:qtip="{text}" class="x-combo-list-item">{text}</div></tpl>'
});