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description: ╱🚧 under construction
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# pseudo-element

CSS ⟩ pseudo-element&#x20;

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{% tabs %}
{% tab title="📘 手冊" %}
* MDN ⟩ [Using templates and slots](https://developer.mozilla.org/en-US/docs/Web/Web_Components/Using_templates_and_slots)&#x20;
* MDN ⟩ [CSS](https://developer.mozilla.org/en-US/docs/Web/CSS) ⟩ [Pseudo-elements](https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-elements)
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{% tab title="👥 相關" %}
* DOM ⟩ [querying-elements](../../browser/dom/querying-elements "mention")
* [styles](../../component/template/slot/styles "mention")
{% endtab %}
{% endtabs %}

| pseudo-element                                                              | notes                                                                    |
| --------------------------------------------------------------------------- | ------------------------------------------------------------------------ |
| [`::slotted()`](https://developer.mozilla.org/en-US/docs/Web/CSS/::slotted) | any element that has been **placed into a slot** inside an HTML template |
