So, I've read here that in Vue.js, you can use /deep/
or >>>
in a selector in order to create style rules that apply to elements inside of child components. However, attempting to use this in my styles, whether in SCSS or in plain old CSS, doesn't work. Instead, they are sent to the browser verbatim, and therefore have no effect. For example:
home.vue:
<style lang="css" scoped>
.autocomplete >>> .autocomplete-input
{
// ...
}
</style>
generated css:
<style type="text/css">
.autocomplete >>> .autocomplete-input[data-v-2bda0c9a]
{
//...
}
</style>
what I want:
<style type="text/css">
.autocomplete[data-v-2bda0c9a] .autocomplete-input
{
//...
}
</style>
My webpack configuration pertaining to vue-loader
looks like this:
// ...
{
test: /\.vue$/,
loader: "vue-loader",
options: {
loaders: {
scss: "vue-style-loader!css-loader!sass-loader"
}
}
}
// ...
So my question is, how do I get this >>>
operator to work?
I've already found this answer, but I'm doing exactly that and it doesn't work...
The following also works in Vue 3 but is deprecated.
Sass: Use ::v-deep
::v-deep .child-class {
background-color: #000;
}
Not using Sass: Use >>>
>>> .child-class {
background-color: #000;
}
With either syntax, the <style>
tag for this component must be scoped
:
<style scoped>
In Vue 3, the ::v-
prefix is now deprecated and we no longer need >>>
. We can use the unified :deep
selector whether using Sass or not, but now it's recommended to use parentheses with the selector.
Use :deep(.child-class)
:deep(.child-class) {
background-color: #000;
}
This also works in Vue 2.7 (final Vue 2 release)
Additionally, in Vue 3, there is a new feature for components with a <slot>
that enables styling passed slot content.
Slot content Use :slotted(.child-class)
:slotted(.slot-class) {
background-color: #000;
}
And lastly, in Vue 3, there is a new feature to register global styles even from a scoped
component:
Global styles Use :global(.my-class)
:global(.my-class) {
background-color: #000;
}
With any syntax, the <style>
tag for this component must be scoped
:
<style scoped>
In Vue 2:
/deep/
syntax is deprecated::v-deep
with Sass, use >>>
without SassIn Vue 3:
::v-deep .child-class
is deprecated in favor of :deep(.child-class)
::v-
prefix is deprecated in favor of :
>>>
syntax is deprecated/deep/
syntax is deprecated:slotted
and :global
selectorsWith every version/syntax, the <style>
tag for this component must be scoped
:
<style scoped>