igakim/mcs-ui

Button example:

```js
<div>
  <Button type="warning" htmlType="button" size="small"> small Warning </Button>
  <Button type="primary" htmlType="button" size="medium"> Medium primary </Button>
  <Button type="success" htmlType="button" size="big"> Success </Button>
  <Button type="danger" htmlType="button" size="big"> Danger </Button>
  <Button type="secondary" htmlType="button" size="big"> Secondary </Button>
  <Button type="info" htmlType="button" size="big"> Info </Button>
  <Button type="info" htmlType="button" size="big" disabled> Disabled </Button>
  <div style={{ margin: '15px 0' }}>
    <Button type="primary" stretched>Stretched</Button>
  </div>
</div>
```

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