npm install @mui/material @emotion/react @emotion/styled
# `@emotion/react` and `@emotion/styled` are peer dependencies<div>Hello</div>With header path
PlainCssSliderDeep1.js
import * as React from 'react';
import Slider from '@mui/material/Slider';
import './PlainCssSliderDeep1.css';
export default function PlainCssSliderDeep1() {
return (
<div>
<Slider defaultValue={30} />
<Slider defaultValue={30} className="slider" />
</div>
);
}