我想在React应用程序中使用 styled-components 创建一个菜单组件,其中包含同一文件中的样式,从而使其非常模块化 . 我正在使用 react-burger-menu 作为菜单 . 如果我将 BurgerMenu 包装在样式_2696245中,那么一切正常(从 react-burger-menu README.md复制的样式):

import React from 'react';
import { slide as BurgerMenu } from 'react-burger-menu';
import styled from 'styled-components';


const StyledBurgerMenu = styled.div`
  /* Position and sizing of burger button */
  .bm-burger-button {
    position: fixed;
    width: 36px;
    height: 30px;
    left: 36px;
    top: 36px;
  }

  /* Color/shape of burger icon bars */
  .bm-burger-bars {
    background: #373a47;
  }

  /* Position and sizing of clickable cross button */
  .bm-cross-button {
    height: 24px;
    width: 24px;
  }

  /* Color/shape of close button cross */
  .bm-cross {
    background: #bdc3c7;
  }

  /* General sidebar styles */
  .bm-menu {
    background: #373a47;
    padding: 2.5em 1.5em 0;
    font-size: 1.15em;
  }

  /* Morph shape necessary with bubble or elastic */
  .bm-morph-shape {
    fill: #373a47;
  }

  /* Wrapper for item list */
  .bm-item-list {
    color: #b8b7ad;
    padding: 0.8em;
  }

  /* Individual item */
  .bm-item {
    display: inline-block;
  }

  /* Styling of overlay */
  .bm-overlay {
    background: rgba(0, 0, 0, 0.3);
  }
`;


export class Menu extends React.Component {
  showSettings(event) {
    event.preventDefault();
  }

  render() {
    return (
      <StyledBurgerMenu>
        <BurgerMenu>
          <a id="home" className="menu-item" href="/">Home</a>
          <a id="about" className="menu-item" href="/about">About</a>
        </BurgerMenu>
      </StyledBurgerMenu>
    );
  }
}

export default Menu;

现在这当然完全没问题 . 然而,为了吸取教训并使事情变得更优雅,我想通过将前者传递给 styled() 来摆脱 StyledBurgerMenu 内部的嵌套 BurgerMenu . 然而,这导致汉堡按钮没有样式(根据文档,它在所有屏幕上透明地覆盖,所以我可以点击任何地方打开菜单并看到其他所有内容都正确设置) . 是否可以以这种方式设置汉堡按钮的样式,或者我是否必须使用外部 div ?以下是我试图解决这个问题的方法:

import React from 'react';
import { slide as BurgerMenu } from 'react-burger-menu';
import styled from 'styled-components';


const StyledBurgerMenu = styled(BurgerMenu)`
  /* Position and sizing of burger button */
  .bm-burger-button {
    position: fixed;
    width: 36px;
    height: 30px;
    left: 36px;
    top: 36px;
  }

  /* Color/shape of burger icon bars */
  .bm-burger-bars {
    background: #373a47;
  }

  /* Position and sizing of clickable cross button */
  .bm-cross-button {
    height: 24px;
    width: 24px;
  }

  /* Color/shape of close button cross */
  .bm-cross {
    background: #bdc3c7;
  }

  /* General sidebar styles */
  .bm-menu {
    background: #373a47;
    padding: 2.5em 1.5em 0;
    font-size: 1.15em;
  }

  /* Morph shape necessary with bubble or elastic */
  .bm-morph-shape {
    fill: #373a47;
  }

  /* Wrapper for item list */
  .bm-item-list {
    color: #b8b7ad;
    padding: 0.8em;
  }

  /* Individual item */
  .bm-item {
    display: inline-block;
  }

  /* Styling of overlay */
  .bm-overlay {
    background: rgba(0, 0, 0, 0.3);
  }
`;


export class Menu extends React.Component {
  showSettings(event) {
    event.preventDefault();
  }

  render() {
    return (
      <StyledBurgerMenu>
        <a id="home" className="menu-item" href="/">Home</a>
        <a id="about" className="menu-item" href="/about">About</a>
      </StyledBurgerMenu>
    );
  }
}

export default Menu;

谢谢!