react 组件添加样式
Let’s say you’d like to add a CSS Modules Stylesheet to your project. You can find Create React App’s guidance here, but essentially — and as the guidance states — CSS Modules let you use thesameCSS selector in different files without worrying about naming clashes. This works because each HTML element in your file that you want to style is automatically given auniqueclass name.
假设您要在项目中添加CSS模块样式表。 您可以在此处找到Create React App的指南 ，但从本质上(作为指南的陈述)，CSS模块使您可以在不同文件中使用相同的CSS选择器，而不必担心命名冲突。 之所以可行，是因为您要设置样式的文件中的每个HTML元素都会自动获得一个唯一的类名。
This can seem quite confusing at first, but really the process to implement CSS Modules can be simplified to just 4 steps, as demonstrated in the below example.
乍一看这似乎很令人困惑，但是实际上实现CSS模块的过程可以简化为仅4个步骤，如以下示例所示。
将模块化CSS添加到简单的<Link />组件中 (Adding modular CSS to a simple <Link /> component)
A feature of React is that CSS Modules are “turned on” for files ending with the.module.cssextension. Create the CSS file with a specific filename in the following format:
React的一个功能是，对于以.module.css扩展名结尾的文件，“打开” CSS模块。 使用以下格式创建具有特定文件名CSS文件：
Link.module.css
2. Import styling to your component:
2.将样式导入到您的组件中：
import styles from ‘../styling/components/Link.module.css’
3. The styles in your CSS file can follow your preferred naming convention, for instance:
3. CSS文件中的样式可以遵循您的首选命名约定，例如：
.bold { font-weight: bold;}
4. The style is applied to the HTML element as follows:
4.将样式应用于HTML元素，如下所示：
className={styles.bold}
And that’s it!
就是这样！
Photo credit:Adrian SwancaronUnsplash
照片来源：Unsplash上的AdrianSwancar
翻译自: /news/how-to-add-a-css-modules-stylesheet-to-your-react-component-in-4-simple-steps/
react 组件添加样式
