How to customize icon and width in React DropDownButton

Customize the width and icon positioning of the DropDownButton by applying CSS classes and properties. The following example demonstrates how to set the icon position to Top, button width to 85px, and icon size to 40px using the e-custom class with the iconPosition property:

app.jsx

import { enableRipple } from '@syncfusion/ej2-base';
import { DropDownButtonComponent } from '@syncfusion/ej2-react-splitbuttons';
import * as React from 'react';
import * as ReactDom from 'react-dom';
enableRipple(true);
// To render DropDownButton.
function App() {
    let items = [
        {
            text: 'Find'
        },
        {
            text: 'Replace'
        },
        {
            text: 'Go To'
        },
        {
            text: 'Go To Special'
        }
    ];
    return (<div>
    <DropDownButtonComponent items={items} iconCss='e-icons e-search' cssClass='e-custom e-vertical' iconPosition='Top'>Find & Select</DropDownButtonComponent>
    </div>);
}
export default App;
ReactDom.render(<App />, document.getElementById('button'));

app.tsx

import { enableRipple } from '@syncfusion/ej2-base';
import { DropDownButtonComponent, ItemModel } from '@syncfusion/ej2-react-splitbuttons';
import * as React from 'react';
import * as ReactDom from 'react-dom';

enableRipple(true);

// To render DropDownButton.
function App() {

  let items: ItemModel[] = [
    {
        text: 'Find'
    },
    {
        text: 'Replace'
    },
    {
        text: 'Go To'
    },
    {
        text: 'Go To Special'
    }];

  return (
  <div>
    <DropDownButtonComponent items = {items} iconCss='e-icons e-search' cssClass='e-custom e-vertical' iconPosition='Top'>Find & Select</DropDownButtonComponent>
    </div>
  );
}
export default App;
ReactDom.render(<App />,document.getElementById('button'));