JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://dev.sencha.com/deploy/ext-4.0.2a/resources/css/ext-all.css">

CSS

body {
    background: #aaa;
}

JavaScript

var cp = new Ext.picker.Color({
    value: '993300',  // initial selected color
    style: {
        backgroundColor: "#fff",
        borderWidth: '1px',
        borderColor: '#99BCE8',
        borderStyle: 'solid',
        paddingBottom: '5px',
        width: '146px',
        height: '92px'
           },
    renderTo: Ext.getBody()
});