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Web/API/ShadowRoot/fullscreenElement を更新 #23846

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13 changes: 5 additions & 8 deletions files/ja/web/api/shadowroot/fullscreenelement/index.md
Original file line number Diff line number Diff line change
@@ -1,19 +1,16 @@
---
title: ShadowRoot.fullscreenElement
title: "ShadowRoot: fullscreenElement プロパティ"
short-title: fullscreenElement
slug: Web/API/ShadowRoot/fullscreenElement
l10n:
sourceCommit: f2f9346c0c0e9f6676f2df9f1850933e274401de
---

{{APIRef("Shadow DOM")}}

**`fullscreenElement`** は {{domxref("ShadowRoot")}} インターフェイスの読み取り専用プロパティで、現在全画面モードで表示されているシャドウツリー内の要素を返します。

## 構文

```js
shadowRoot.fullscreenElement;
```

### 値
## 値

現在全画面モードで表示されている {{domxref('Element')}}、または全画面モードの要素がなければ `null` を返します。

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