1. react 简书 项目初始化
1. 创建 react 项目
npx create-react-app my-app
2. src 目录下删除 除了 index.js index.css app.js 的文件
3. 引入 styled-components 样式组件
yarn add styled-components
4. 修改 index.css 改名为 style.js 并书写 style.js 写入 reset.css
#style.js
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;
}
`
5. 修改 index.js 使 style.js 默认样式 作用于全局
import React, {Fragment} from 'react';
import ReactDOM from 'react-dom';
import { Globalstyle } from './style.js';
import App from './App';
const NewApp = (<Fragment>
<Globalstyle />
<App />
</Fragment>);
ReactDOM.render(NewApp, document.getElementById('root'));