How can I send styles to a child component and utilize them as scoped styles within Vue?

One of my components is a parent:

<template>
    <ChildComponent :styles="styles" />
</template>

<script>
export default {
    data: () => ({
        styles: `
            p {
                color: red
            }
        `
    })
}
</script>

And here is the child component:

<template>
    <p>Hello World</p>
</template>

<script>
export default {
    props: {
        styles: {
            type: String,
            required: true
        }
    }
}
</script>

<style scoped>

</style>

I am looking for a way to apply those parent-provided styles in the child component as scoped styles. For example:

<!-- ChildComponent.vue -->

<style scoped>
p {
    color: red
}
</style>

Is it achievable?

Answer №1

To apply styles specifically to child elements using scoped styling, you must use the deep selector.

This can be accomplished with

a >>> b { color : red; }
/deep/ a b { color : red; }
a::v-deep b { color : red; }

For more detailed information, check out:

Answer №2

To customize the style of your child component based on its parent component, you can pass an attribute as a prop and use it as a class within the child component. Here's how you can do it:

Parent component:

<template>
    <ChildComponent styles="parent-style" />
</template>

Child component:

<template>
  <section :class="styles">
    <p>Hello World</p>
  </section>
</template>

<script>
export default {
    props: {
        styles: {
            type: String,
            required: true
        }
    }
}
</script>

<style lang="scss" scoped>
  .parent-style {
    p {
      color: red;
    }
  }

</style>

Answer №3

Kindly be aware that this does not address scoped CSS. My approach involves utilizing CSS modules, which may still be helpful or serve as a means of enhancing the current method.

Pass class names to the child component from the parent like so:

Parent Example

<template>
  <header :class="$style.Header">

    <!-- transfer class names to **Child-Component** using `v-bind` within the className attribute -->
    <HeaderLogo :className="$style.Header__logo" />

</header>
</template>

Child Example

<template>
  <div :class="className">Blah</div>
</template>

CSS Module Setup

<style lang="scss" module>
.Header {
  white-space: nowrap;
  &__logo {
    width: 100%;
  }
}
</style>

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