上代码

.m-nav-bar {
 background: #171a21;
 .content {
  height: 104px;
  margin: 0px auto;
 }
}

import React from "react";
import styles from  './css.module.scss'


export default class NavBar extends React.Component<any, any> {
  constructor (props: any) {
    super(props);
    this.state = {
    };
  }

  render () {
    return (
      <div className={styles['m-nav-bar']}>
        <div className={styles['content']}>
          内容
        </div>
      </div>
    );
  }
}

导入的时候把名称改为css.module.scss