Using Vuetify classes within SASS
It seems the spacing helper classes (including .mr-1
) are only found when importing vuetify/src/styles/main.sass
instead of styles.sass
. The .shrink
class is found in vuetify/src/components/VGrid/_grid.sass
.
So your main.sass
should look like this:
@import '~vuetify/src/styles/main.sass'
@import '~vuetify/src/components/VGrid/_grid.sass' // for .shrink
.myTest
@extend .mr-1
@extend .shrink
sass-loader
config
The original question is probably using an older version of sass-loader
, given the sass.data
config. If using version 8 or newer, the loader option is sass.additionalData
:
// vue.config.js
module.exports = {
css: {
loaderOptions: {
sass: {
// sass-loader >= 8
additionalData: `@import "~@/path/to/main.sass"`
// sass-loader < 8
data: `@import "~@/path/to/main.sass"`
}
}
},
}
Prepending global styles
With the sass-loader
config above, importing vuetify/src/styles/main.sass
in your project's root main.sass
(as done in the original question) causes an error. The workaround is to copy the contents of Vuetify's main.sass
into your own. However, if your app uses any Vuetify components, you'll see the same error for _grid.sass
, and the same workaround applies:
// @import '~vuetify/src/styles/main.sass' ❌ SassError: This file is already being loaded.
@import '~vuetify/src/styles/tools/_index'
@import '~vuetify/src/styles/settings/_index'
@import '~vuetify/src/styles/generic/_index'
@import '~vuetify/src/styles/elements/_index'
@import '~vuetify/src/styles/utilities/_index'
// @import '~vuetify/src/components/VGrid/_grid.sass' ❌ SassError: This file is already being loaded.
.shrink
flex-grow: 0 !important
flex-shrink: 1 !important
.myTest
@extend .mr-1
@extend .shrink
This approach gets unwieldy the more you need to extend the component-specific styles.
Also, since this prepends the contents of your main.sass
to all Sass entry points, you may notice a significant delay in build/dev times (hampering developer experience), and a sizable vendor CSS chunk in your build output.
Better alternatives
You could avoid the caveats above by importing your main.sass
in main.js
:
import '@/main.sass'
demo 1
On the other hand, if you only need these styles in a specific component, use local styles instead:
<script>
import '@/main.sass'
</script>
demo 2
<!-- or -->
<style lang="sass">
@import '~@/main.sass'
</style>
demo 3
<!-- or -->
<style lang="sass">
@import '~vuetify/src/styles/main.sass'
@import '~vuetify/src/components/VGrid/_grid.sass' // for .shrink
.myTest
@extend .mr-1
@extend .shrink
</style>
demo 4