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Best way to have global css in Vuejs

What is the best way to have a global css file in Vuejs for all components? (Default css like bg color, button styling, etc)

import a css file in the index.html

do @import in main component

put all the css in the main component (but that would be a huge file)

Thanks @mods for not closing this as opionion-based. It's actually helping me a lot.

t
trainoasis

Import css in your index.html, but if you're using webpack you can just import your stylesheets in your main js config and all your components will get the css.

As comments below suggested if using webpack adding this to main.js works:

import './assets/css/main.css';

Thank you! I'm using webpack so in my main.js file I did require('./assets/css/main.css'); and it works now.
@Jordy I guess the best approach would be using the sass-loader to get it done. Takes just a few words to get it done. Here's the explained solution- stackoverflow.com/a/46015906/5013932
@Jordy there is no need for require, when it can be done with import './assets/css/main.css').
An example would be nice for people
Warning : Good solution. It run. But if you want a dynamic system you can't do this into response promise for example.
C
Coder Absolute

I found the best way is to create a new file in the assets folder, I created as global.css but you can name anything of your choice. Then, import this file global.css file in the main.js.

Note: Using this approach you can also create multiple files if you think the global.css is getting really large then simply import all those files in the main.js.

@\assets\global.css

/* move the buttons to the right */
.buttons-align-right {
  justify-content: flex-end;
}

main.js

import Vue from 'vue'
import App from './App.vue'
import router from './routes'

Vue.config.productionTip = false

// Importing the global css file
import "@/assets/global.css"

new Vue({
  router,
  render: h => h(App)
}).$mount('#app')

Do you know if this approach has the same effect as adding it to the App.vue ? as the above answer from @c24b?
Sorry, I haven't tested whether it has got the same effect or not. But, I prefer to separate my files (if they make a sense).
c
c24b

In App.vue you can add a style property to declare you CSS file:

<style>
  @import './assets/css/global.css';
</style>

Do you know if this approach has the same effect as adding it to the main.js ? as the answer from @Coder Absolute meaning can you add more imports here as well ?
This has not the exact same effect as in main.js the import are executed at one following the order of the declaration of the import and not the order of the execution of the template.
P
PeeJee

You can also do something like this: https://css-tricks.com/how-to-import-a-sass-file-into-every-vue-component-in-an-app/

My folders are mostly structured like this:

 - src
   - assets
     - _global.scss
     - _colors.scss
     - _fonts.scss
     - _paragraphs
     - index.scss // <-- import all other scss files.

This also works with normal css.


Be careful PeeJee, the solution your are proposing is just recommended for share scss variables across the entire application components. Further information here: https://vueschool.io/articles/vuejs-tutorials/globally-load-sass-into-your-vue-js-applications/ "You have to make sure that the files that you import in the data configuration contain only SASS code that doesn't get rendered, such as variables, mixins and functions. Otherwise, that code will end up repeated for each component in...
... the final post-processed css file" – XaviPS [Converted to comment from answer, but it didn't fit]
Thank you for the information @XaviPS, didn't know that!
u
user3932156

There are to two ways, as I know, to achieve this.

Approach 1

Utilize vue.config.js configuration, less config can also be replaced with sass:

module.exports = {
  css: {
    loaderOptions: {
      less: {
        additionalData: `@import '@/style/common.less';`
      }
    }
  }
}

Approach 2

In your .vue file, make your style looks like this:

<style lang="less">
@import (reference) "../../style/variables.less";
#app {
  background: @bgColor;
}
</style>

Note: the (reference) flag is used to make variables defined in variables.less take effect. If you don't have variables, @import "../../style/variables.less"; is sufficient to do the trick.

For your reference, you can also take a look at this link:

https://github.com/tjcchen/vue-practice/tree/master/multipage-app


O
Omar Izem

create a new css file in your assets folder for example : global.css import "global.css" to main.js

    import '@/assets/main.css';

M
MD SHAYON

create a vue.config.js file in your root directory Create a styles folder inside your src folder and you can create your global style file here for example base.scss to use scss install two dependencies

npm install node-loader sass-loader

Inside your vue.config.js paste code from below

module.exports = {
    css: {
      loaderOptions: {
        sass: {
            additionalData: `@import "@/styles/base.scss";`
        }
      }
    }
  };