reactjs 的 css 模块化工具 styled-components 升级后 createGlobalStyle 废除，使用 createGlobalStyle 的方案...

在 styled-components 升级到 4 版本后设置全局属性的 createGlobalStyle 这个 api 被废除，替代的 api 是 createGlobalStyle 与过去组织代码的方式有差异代码如下。

style.js 文件中的代码：

import { createGlobalStyle } from 'styled-components'

export const GlobalStyle = createGlobalStyle`
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
    display: block;
}
body {
    line-height: 1;
}
ol, ul {
    list-style: none;
}
blockquote, q {
    quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
    content: '';
    content: none;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
}
`

index.js 文件中的代码如下：

import React, { Fragment } from 'react';
import ReactDOM from 'react-dom';
import { GlobalStyle }  from './style.js';
import App from './App';

ReactDOM.render(
  <Fragment>
    <GlobalStyle />
    <App />
  </Fragment>, 
document.getElementById('root'));