react-datetime下拉列表缺少样式(Css)

import React from 'react';
import Datetime from 'react-datetime';

const MyComponent = () => {
  return (
    <Datetime
      style={{ color: 'red', fontSize: '16px' }}
    />
  );
};

export default MyComponent;

import React from 'react';
import Datetime from 'react-datetime';
import './datetime.css';

const MyComponent = () => {
  return (
    <Datetime className="custom-datetime" />
  );
};

export default MyComponent;

.custom-datetime {
  color: red;
  font-size: 16px;
}

import React from 'react';
import Datetime from 'react-datetime';
import styles from './datetime.module.css';

const MyComponent = () => {
  return (
    <Datetime className={styles.customDatetime} />
  );
};

export default MyComponent;

.customDatetime {
  color: red;
  font-size: 16px;
}