减少样式以响应组件

Question

I am trying to figure out how to get my react components to not pick up the css classes of another react component. So say I have a component called Home and one called About, and on the inside they both just contain a div with a className of header-container and their less imports like so:

Home:

import React, { Component } from 'react';

import './home.less';

class Home extends Component {
    render() {
        return (
            <div className='header-container'>
                <h1>Home</h1>
            </div>
        );
    }
}

export default Home;

About:

import React, { Component } from 'react';

import './about.less';

class About extends Component {
    render() {
        return (
            <div className='header-container'>
                <h1>About</h1>
            </div>
        );
    }
}

export default About;

And the less file for each looks like so with different colors (For this example lets say this is the about.less file):

.header-container {
    color: red;
}

Now when I use the react-router-dom and try to navigate to the home page, I am seeing the word Home but with the red color that is in the about less file, instead of the blue in my home.less file.

This is how I am navigating to the components

import React, { Component } from 'react';
import { BrowserRouter as Router, Route, Link, Switch } from 'react-router-dom';

import Home from './home/home';
import About from './about/about';

class App extends Component {
    render() {
        return (
            <Router>
                <Switch>
                    <Route exact path='/' component={Home}/>
                    <Route path='/about' component={About}/>
                </Switch>
            </Router>
        );
    }
}

export default App;

Anybody have any suggestions on how I can seperate these to not affect eachother? Not sure if it helps, but when I am seeing this I am running webpack-dev-server to serve the files.

Edit: Also I noticed when I inspect element on the page loaded, I am seeing the following css in my head element.

Answer 1

If it's going to be in the same app and you want to use an external style sheet, it's recommended that you name the two div s differently.

eg <div className='about-page__header-container'> <div className='home-page__header-container'>

This is because the css styles imported as the style sheet are global.

An alternative would be to use inline style, which is becoming increasingly popular in React.js community.

For a comparison of the two options, see The Debate Around "Do We Even Need CSS Anymore?"