64 lines
2.5 KiB
Vue
64 lines
2.5 KiB
Vue
<template>
|
|
<DocSectionText v-bind="$attrs">
|
|
<p class="notification">A CSS layer is utilized in styled mode only, in unstyled mode the built-in CSS classes are not included and as a result no layer is defined. This documentation only applies to styled mode.</p>
|
|
<p>
|
|
The <i>@layer</i> is a standard CSS feature to define cascade layers for a customizable order of precedence. If you need to become more familiar with layers, visit the documentation at
|
|
<a href="https://developer.mozilla.org/en-US/docs/Web/CSS/@layer">MDN</a> to begin with. In styled mode, PrimeVue wraps the built-in style classes under the <i>primevue</i> cascade layer to make the library styles easy to override. CSS in
|
|
your app without a layer has the highest CSS specificity, so you'll be able to override styles regardless of the location or how strong a class is written.
|
|
</p>
|
|
<p>
|
|
For example, let's assume you need to remove the rounded borders of the InputSwitch component defined by the theme in use. In order to achieve this, <i>.p-inputswitch .p-inputswitch-slider</i> selector needs to be overriden. Without the
|
|
layers, we'd have to write a stronger css or use <i>!important</i> however, with layers, this does not present an issue as your CSS can always override PrimeVue with a more straightforward class name such as <i>my-switch-slider</i>.
|
|
Another advantage of this approach is that it does not force you to figure out the built-in class names of the components.
|
|
</p>
|
|
<div class="card flex justify-content-center">
|
|
<InputSwitch v-model="checked" :pt="{ slider: 'my-switch-slider' }" />
|
|
</div>
|
|
<DocSectionCode :code="code" hideToggleCode hideStackBlitz />
|
|
<p>Layers also make it possible to use CSS Modules, view the <NuxtLink to="/theming/#cssmodules">CSS Modules</NuxtLink> guide for examples.</p>
|
|
</DocSectionText>
|
|
</template>
|
|
|
|
<script>
|
|
export default {
|
|
data() {
|
|
return {
|
|
checked: false,
|
|
code: {
|
|
basic: `
|
|
<template>
|
|
<InputSwitch v-model="checked" :pt="{ slider: 'my-switch-slider' }" />
|
|
</template>
|
|
|
|
<script>
|
|
import { ref } from "vue";
|
|
|
|
const checked = ref(false);
|
|
<\/script>
|
|
|
|
<style>
|
|
.my-switch-slider {
|
|
border-radius: 0;
|
|
}
|
|
|
|
.my-switch-slider:before {
|
|
border-radius: 0;
|
|
}
|
|
</style>
|
|
`
|
|
}
|
|
};
|
|
}
|
|
};
|
|
</script>
|
|
|
|
<style>
|
|
.my-switch-slider {
|
|
border-radius: 0;
|
|
}
|
|
|
|
.my-switch-slider:before {
|
|
border-radius: 0;
|
|
}
|
|
</style>
|