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(Click to learn more.)"><span class="icon icon-question-mark "></span></a></div></form></li><li class=" "><a data-locale="de" href="/de/docs/Web/API/HTMLHtmlElement" class="button submenu-item"><span>Deutsch</span><span title="Diese Übersetzung ist Teil eines Experiments."><span class="icon icon-experimental "></span></span></a></li><li class=" "><a data-locale="en-US" href="/en-US/docs/Web/API/HTMLHtmlElement" class="button submenu-item"><span>English (US)</span></a></li><li class=" "><a data-locale="zh-CN" href="/zh-CN/docs/Web/API/HTMLHtmlElement" class="button submenu-item"><span>中文 (简体)</span></a></li></ul></div></div></li></ul></div></div></div></div><div class="container"><div class="notecard localized-content-note"><p><a href="/ja/docs/MDN/Community/Contributing/Translated_content#アクティブなロケール">このページはコミュニティーの尽力で英語から翻訳されました。MDN Web Docs コミュニティーについてもっと知り、仲間になるにはこちらから。</a></p></div></div><div class="main-wrapper"><div class="sidebar-container"><aside id="sidebar-quicklinks" class="sidebar" data-macro="APIRef"><button type="button" class="button action backdrop" aria-label="Collapse sidebar"><span class="button-wrap"></span></button><nav aria-label="Related Topics" class="sidebar-inner"><header class="sidebar-actions"><section class="sidebar-filter-container"><div class="sidebar-filter "><label id="sidebar-filter-label" class="sidebar-filter-label" for="sidebar-filter-input"><span class="icon icon-filter"></span><span class="visually-hidden">Filter sidebar</span></label><input id="sidebar-filter-input" autoComplete="off" class="sidebar-filter-input-field false" type="text" placeholder="Filter" value=""/><button type="button" class="button action has-icon clear-sidebar-filter-button"><span class="button-wrap"><span class="icon icon-cancel "></span><span class="visually-hidden">Clear filter input</span></span></button></div></section></header><div class="sidebar-inner-nav"><div class="in-nav-toc"><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">この記事では</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#プロパティ">プロパティ</a></li><li class="document-toc-item "><a class="document-toc-link" href="#メソッド">メソッド</a></li><li class="document-toc-item "><a class="document-toc-link" href="#仕様書">仕様書</a></li><li class="document-toc-item "><a class="document-toc-link" href="#ブラウザーの互換性">ブラウザーの互換性</a></li><li class="document-toc-item "><a class="document-toc-link" href="#関連情報">関連情報</a></li></ul></section></div></div><div class="sidebar-body"><ol><li class="section"><a href="/ja/docs/Web/API/HTML_DOM_API">HTML DOM API</a></li><li class="section"><em><a href="/ja/docs/Web/API/HTMLHtmlElement" aria-current="page"><code>HTMLHtmlElement</code></a></em></li><li class="toggle"><details open=""><summary>インスタンスプロパティ</summary><ol><li><a href="/ja/docs/Web/API/HTMLHtmlElement/version"><code>version</code></a></li></ol></details></li><li class="toggle"><details open=""><summary>継承</summary><ol><li><a href="/ja/docs/Web/API/HTMLElement"><code>HTMLElement</code></a></li><li><a href="/ja/docs/Web/API/Element"><code>Element</code></a></li><li><a href="/ja/docs/Web/API/Node"><code>Node</code></a></li><li><a href="/ja/docs/Web/API/EventTarget"><code>EventTarget</code></a></li></ol></details></li><li class="toggle"><details open=""><summary>HTML DOM に関連するページ</summary><ol><li><a href="/ja/docs/Web/API/BeforeUnloadEvent"><code>BeforeUnloadEvent</code></a></li><li><a href="/ja/docs/Web/API/DOMStringMap"><code>DOMStringMap</code></a></li><li><a href="/ja/docs/Web/API/ErrorEvent"><code>ErrorEvent</code></a></li><li><a href="/ja/docs/Web/API/HTMLAnchorElement"><code>HTMLAnchorElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLAreaElement"><code>HTMLAreaElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLAudioElement"><code>HTMLAudioElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLBRElement"><code>HTMLBRElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLBaseElement"><code>HTMLBaseElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLBodyElement"><code>HTMLBodyElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLButtonElement"><code>HTMLButtonElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLCanvasElement"><code>HTMLCanvasElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLDListElement"><code>HTMLDListElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLDataElement"><code>HTMLDataElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLDataListElement"><code>HTMLDataListElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLDialogElement"><code>HTMLDialogElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLDivElement"><code>HTMLDivElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLDocument"><code>HTMLDocument</code></a></li><li><a href="/ja/docs/Web/API/HTMLElement"><code>HTMLElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLEmbedElement"><code>HTMLEmbedElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLFieldSetElement"><code>HTMLFieldSetElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLFormControlsCollection"><code>HTMLFormControlsCollection</code></a></li><li><a href="/ja/docs/Web/API/HTMLFormElement"><code>HTMLFormElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLFrameSetElement"><code>HTMLFrameSetElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLHRElement"><code>HTMLHRElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLHeadElement"><code>HTMLHeadElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLHeadingElement"><code>HTMLHeadingElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLIFrameElement"><code>HTMLIFrameElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLImageElement"><code>HTMLImageElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLInputElement"><code>HTMLInputElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLLIElement"><code>HTMLLIElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLLabelElement"><code>HTMLLabelElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLLegendElement"><code>HTMLLegendElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLLinkElement"><code>HTMLLinkElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLMapElement"><code>HTMLMapElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLMediaElement"><code>HTMLMediaElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLMenuElement"><code>HTMLMenuElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLMetaElement"><code>HTMLMetaElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLMeterElement"><code>HTMLMeterElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLModElement"><code>HTMLModElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLOListElement"><code>HTMLOListElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLObjectElement"><code>HTMLObjectElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLOptGroupElement"><code>HTMLOptGroupElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLOptionElement"><code>HTMLOptionElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLOptionsCollection"><code>HTMLOptionsCollection</code></a></li><li><a href="/ja/docs/Web/API/HTMLOutputElement"><code>HTMLOutputElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLParagraphElement"><code>HTMLParagraphElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLPictureElement"><code>HTMLPictureElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLPreElement"><code>HTMLPreElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLProgressElement"><code>HTMLProgressElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLQuoteElement"><code>HTMLQuoteElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLScriptElement"><code>HTMLScriptElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLSelectElement"><code>HTMLSelectElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLSourceElement"><code>HTMLSourceElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLSpanElement"><code>HTMLSpanElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLStyleElement"><code>HTMLStyleElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLTableCaptionElement"><code>HTMLTableCaptionElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLTableCellElement"><code>HTMLTableCellElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLTableColElement"><code>HTMLTableColElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLTableElement"><code>HTMLTableElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLTableRowElement"><code>HTMLTableRowElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLTableSectionElement"><code>HTMLTableSectionElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLTemplateElement"><code>HTMLTemplateElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLTextAreaElement"><code>HTMLTextAreaElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLTimeElement"><code>HTMLTimeElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLTitleElement"><code>HTMLTitleElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLTrackElement"><code>HTMLTrackElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLUListElement"><code>HTMLUListElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLUnknownElement"><code>HTMLUnknownElement</code></a></li><li><a href="/ja/docs/Web/API/HTMLVideoElement"><code>HTMLVideoElement</code></a></li><li><a href="/ja/docs/Web/API/HashChangeEvent"><code>HashChangeEvent</code></a></li><li><a href="/ja/docs/Web/API/History"><code>History</code></a></li><li><a href="/ja/docs/Web/API/ImageData"><code>ImageData</code></a></li><li><a href="/ja/docs/Web/API/Location"><code>Location</code></a></li><li><a href="/ja/docs/Web/API/MessageChannel"><code>MessageChannel</code></a></li><li><a href="/ja/docs/Web/API/MessageEvent"><code>MessageEvent</code></a></li><li><a href="/ja/docs/Web/API/MessagePort"><code>MessagePort</code></a></li><li><a href="/ja/docs/Web/API/Navigator"><code>Navigator</code></a></li><li><a href="/ja/docs/Web/API/PageRevealEvent"><code>PageRevealEvent</code></a></li><li><a href="/ja/docs/Web/API/PageSwapEvent"><code>PageSwapEvent</code></a></li><li><a href="/ja/docs/Web/API/PageTransitionEvent"><code>PageTransitionEvent</code></a></li><li><a href="/ja/docs/Web/API/Plugin"><code>Plugin</code></a></li><li><a href="/ja/docs/Web/API/PluginArray"><code>PluginArray</code></a></li><li><a href="/ja/docs/Web/API/PromiseRejectionEvent"><code>PromiseRejectionEvent</code></a></li><li><a href="/ja/docs/Web/API/RadioNodeList"><code>RadioNodeList</code></a></li><li><a href="/ja/docs/Web/API/UserActivation"><code>UserActivation</code></a></li><li><a href="/ja/docs/Web/API/ValidityState"><code>ValidityState</code></a></li><li><a href="/ja/docs/Web/API/Window"><code>Window</code></a></li><li><a href="/ja/docs/Web/API/WorkletGlobalScope"><code>WorkletGlobalScope</code></a></li></ol></details></li></ol></div></div><section class="place side"></section></nav></aside><div class="toc-container"><aside class="toc"><nav><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">この記事では</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#プロパティ">プロパティ</a></li><li class="document-toc-item "><a class="document-toc-link" href="#メソッド">メソッド</a></li><li class="document-toc-item "><a class="document-toc-link" href="#仕様書">仕様書</a></li><li class="document-toc-item "><a class="document-toc-link" href="#ブラウザーの互換性">ブラウザーの互換性</a></li><li class="document-toc-item "><a class="document-toc-link" href="#関連情報">関連情報</a></li></ul></section></div></nav></aside><section class="place side"></section></div></div><main id="content" class="main-content "><article class="main-page-content" lang="ja"><header><h1>HTMLHtmlElement</h1><details class="baseline-indicator high"><summary><span class="indicator" role="img" aria-label="Baseline Check"></span><h2>Baseline <span class="not-bold">Widely available</span></h2><div class="browsers"><span class="engine" title="Supported in Chrome and Edge"><span class="browser chrome supported" role="img" aria-label="Chrome check"></span><span class="browser edge supported" role="img" aria-label="Edge check"></span></span><span class="engine" title="Supported in Firefox"><span class="browser firefox supported" role="img" aria-label="Firefox check"></span></span><span class="engine" title="Supported in Safari"><span class="browser safari supported" role="img" aria-label="Safari check"></span></span></div><span class="icon icon-chevron "></span></summary><div class="extra"><p>This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.</p><ul><li><a href="/ja/docs/Glossary/Baseline/Compatibility" data-glean="baseline_link_learn_more" target="_blank" class="learn-more">Learn more</a></li><li><a href="#ブラウザーの互換性" data-glean="baseline_link_bcd_table">See full compatibility</a></li><li><a href="https://survey.alchemer.com/s3/7634825/MDN-baseline-feedback?page=%2Fja%2Fdocs%2FWeb%2FAPI%2FHTMLHtmlElement&level=high" data-glean="baseline_link_feedback" class="feedback-link" target="_blank" rel="noreferrer">Report feedback</a></li></ul></div></details></header><div class="section-content"><p><strong><code>HTMLHtmlElement</code></strong> インターフェイスは、HTML 文書のルートノードとして機能します。このオブジェクトは <a href="/ja/docs/Web/API/HTMLElement"><code>HTMLElement</code></a> インターフェイスで記述されたプロパティやメソッドを継承しています。</p> <p><code>HTMLHtmlElement</code> オブジェクトを文書から受け取るには、 <a href="/ja/docs/Web/API/Document/documentElement"><code>document.documentElement</code></a> プロパティの値を読み取ります。</p><svg viewBox="-1 -1 650 42" preserveAspectRatio="xMinYMin meet"> <a style="text-decoration: none;" href="/ja/docs/Web/API/EventTarget"> <rect x="0" y="0" width="88" height="25" fill="#fff" stroke="#D4DDE4" stroke-width="2px"></rect> <text x="44" y="16" font-size="10px" fill="#4D4E53" text-anchor="middle"> EventTarget </text> </a> <line x1="88" y1="14" x2="118" y2="14" stroke="#D4DDE4"></line> <polyline points="88,14 98,9 98,19 88,14" stroke="#D4DDE4" fill="#fff"></polyline> <a style="text-decoration: none;" href="/ja/docs/Web/API/Node"> <rect x="118" y="0" width="75" height="25" fill="#fff" stroke="#D4DDE4" stroke-width="2px"></rect> <text x="155.5" y="16" font-size="10px" fill="#4D4E53" text-anchor="middle"> Node </text> </a> <line x1="193" y1="14" x2="223" y2="14" stroke="#D4DDE4"></line> <polyline points="193,14 203,9 203,19 193,14" stroke="#D4DDE4" fill="#fff"></polyline> <a style="text-decoration: none;" href="/ja/docs/Web/API/Element"> <rect x="223" y="0" width="75" height="25" fill="#fff" stroke="#D4DDE4" stroke-width="2px"></rect> <text x="260.5" y="16" font-size="10px" fill="#4D4E53" text-anchor="middle"> Element </text> </a> <line x1="298" y1="14" x2="328" y2="14" stroke="#D4DDE4"></line> <polyline points="298,14 308,9 308,19 298,14" stroke="#D4DDE4" fill="#fff"></polyline> <a style="text-decoration: none;" href="/ja/docs/Web/API/HTMLElement"> <rect x="328" y="0" width="88" height="25" fill="#fff" stroke="#D4DDE4" stroke-width="2px"></rect> <text x="372" y="16" font-size="10px" fill="#4D4E53" text-anchor="middle"> HTMLElement </text> </a> <line x1="416" y1="14" x2="446" y2="14" stroke="#D4DDE4"></line> <polyline points="416,14 426,9 426,19 416,14" stroke="#D4DDE4" fill="#fff"></polyline> <a style="text-decoration: none;" href="/ja/docs/Web/API/HTMLHtmlElement" aria-current="page"> <rect x="446" y="0" width="120" height="25" fill="#F4F7F8" stroke="#D4DDE4" stroke-width="2px"></rect> <text x="506" y="16" font-size="10px" fill="#4D4E53" text-anchor="middle"> HTMLHtmlElement </text> </a></svg></div><section aria-labelledby="プロパティ"><h2 id="プロパティ"><a href="#プロパティ">プロパティ</a></h2><div class="section-content"><p><em>親である <a href="/ja/docs/Web/API/HTMLElement"><code>HTMLElement</code></a> から継承したプロパティもあります。</em></p> <dl> <dt id="htmlhtmlelement.version"><a href="/ja/docs/Web/API/HTMLHtmlElement/version"><code>HTMLHtmlElement.version</code></a> <abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">非推奨</span> </abbr></dt> <dd> <p>この文書に適用される HTML 文書型定義 (DTD) のバージョンを表す文字列。このプロパティは不適合であるため、もう使用するべきではありません。省略してください。</p> </dd> </dl></div></section><section aria-labelledby="メソッド"><h2 id="メソッド"><a href="#メソッド">メソッド</a></h2><div class="section-content"><p><em>独自のメソッドはありません。親である <a href="/ja/docs/Web/API/HTMLElement"><code>HTMLElement</code></a> から継承したメソッドがあります。</em></p></div></section><h2 id="仕様書"><a href="#仕様書">仕様書</a></h2><table class="standard-table"><thead><tr><th scope="col">Specification</th></tr></thead><tbody><tr><td><a href="https://html.spec.whatwg.org/multipage/semantics.html#htmlhtmlelement">HTML Standard <br/><small># htmlhtmlelement</small></a></td></tr></tbody></table><h2 id="ブラウザーの互換性"><a href="#ブラウザーの互換性">ブラウザーの互換性</a></h2><p>BCD tables only load in the browser<noscript> with JavaScript enabled. Enable JavaScript to view data.</noscript></p><section aria-labelledby="関連情報"><h2 id="関連情報"><a href="#関連情報">関連情報</a></h2><div class="section-content"><ul> <li>このインターフェイスを実装している HTML 要素: <a href="/ja/docs/Web/HTML/Element/html"><code><html></code></a></li> </ul></div></section></article><aside class="article-footer"><div class="article-footer-inner"><div class="svg-container"><svg xmlns="http://www.w3.org/2000/svg" width="162" height="162" viewBox="0 0 162 162" fill="none" role="none"><mask id="b" fill="#fff"><path d="M97.203 47.04c8.113-7.886 18.004-13.871 28.906-17.492a78 78 0 0 1 33.969-3.39c11.443 1.39 22.401 5.295 32.024 11.411s17.656 14.28 23.476 23.86c5.819 9.579 9.269 20.318 10.083 31.385a69.85 69.85 0 0 1-5.387 32.44c-4.358 10.272-11.115 19.443-19.747 26.801-8.632 7.359-18.908 12.709-30.034 15.637l-6.17-21.698c7.666-2.017 14.746-5.703 20.694-10.773 5.948-5.071 10.603-11.389 13.606-18.467a48.14 48.14 0 0 0 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href=\"/ja/docs/Web/API/HTMLHtmlElement/version\"><code>version</code></a></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>継承</summary><ol><li><a href=\"/ja/docs/Web/API/HTMLElement\"><code>HTMLElement</code></a></li><li><a href=\"/ja/docs/Web/API/Element\"><code>Element</code></a></li><li><a href=\"/ja/docs/Web/API/Node\"><code>Node</code></a></li><li><a href=\"/ja/docs/Web/API/EventTarget\"><code>EventTarget</code></a></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>HTML DOM に関連するページ</summary><ol><li><a href=\"/ja/docs/Web/API/BeforeUnloadEvent\"><code>BeforeUnloadEvent</code></a></li><li><a href=\"/ja/docs/Web/API/DOMStringMap\"><code>DOMStringMap</code></a></li><li><a href=\"/ja/docs/Web/API/ErrorEvent\"><code>ErrorEvent</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLAnchorElement\"><code>HTMLAnchorElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLAreaElement\"><code>HTMLAreaElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLAudioElement\"><code>HTMLAudioElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLBRElement\"><code>HTMLBRElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLBaseElement\"><code>HTMLBaseElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLBodyElement\"><code>HTMLBodyElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLButtonElement\"><code>HTMLButtonElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLCanvasElement\"><code>HTMLCanvasElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLDListElement\"><code>HTMLDListElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLDataElement\"><code>HTMLDataElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLDataListElement\"><code>HTMLDataListElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLDialogElement\"><code>HTMLDialogElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLDivElement\"><code>HTMLDivElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLDocument\"><code>HTMLDocument</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLElement\"><code>HTMLElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLEmbedElement\"><code>HTMLEmbedElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLFieldSetElement\"><code>HTMLFieldSetElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLFormControlsCollection\"><code>HTMLFormControlsCollection</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLFormElement\"><code>HTMLFormElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLFrameSetElement\"><code>HTMLFrameSetElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLHRElement\"><code>HTMLHRElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLHeadElement\"><code>HTMLHeadElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLHeadingElement\"><code>HTMLHeadingElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLIFrameElement\"><code>HTMLIFrameElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLImageElement\"><code>HTMLImageElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLInputElement\"><code>HTMLInputElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLLIElement\"><code>HTMLLIElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLLabelElement\"><code>HTMLLabelElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLLegendElement\"><code>HTMLLegendElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLLinkElement\"><code>HTMLLinkElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLMapElement\"><code>HTMLMapElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLMediaElement\"><code>HTMLMediaElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLMenuElement\"><code>HTMLMenuElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLMetaElement\"><code>HTMLMetaElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLMeterElement\"><code>HTMLMeterElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLModElement\"><code>HTMLModElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLOListElement\"><code>HTMLOListElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLObjectElement\"><code>HTMLObjectElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLOptGroupElement\"><code>HTMLOptGroupElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLOptionElement\"><code>HTMLOptionElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLOptionsCollection\"><code>HTMLOptionsCollection</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLOutputElement\"><code>HTMLOutputElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLParagraphElement\"><code>HTMLParagraphElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLPictureElement\"><code>HTMLPictureElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLPreElement\"><code>HTMLPreElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLProgressElement\"><code>HTMLProgressElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLQuoteElement\"><code>HTMLQuoteElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLScriptElement\"><code>HTMLScriptElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLSelectElement\"><code>HTMLSelectElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLSourceElement\"><code>HTMLSourceElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLSpanElement\"><code>HTMLSpanElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLStyleElement\"><code>HTMLStyleElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLTableCaptionElement\"><code>HTMLTableCaptionElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLTableCellElement\"><code>HTMLTableCellElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLTableColElement\"><code>HTMLTableColElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLTableElement\"><code>HTMLTableElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLTableRowElement\"><code>HTMLTableRowElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLTableSectionElement\"><code>HTMLTableSectionElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLTemplateElement\"><code>HTMLTemplateElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLTextAreaElement\"><code>HTMLTextAreaElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLTimeElement\"><code>HTMLTimeElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLTitleElement\"><code>HTMLTitleElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLTrackElement\"><code>HTMLTrackElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLUListElement\"><code>HTMLUListElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLUnknownElement\"><code>HTMLUnknownElement</code></a></li><li><a href=\"/ja/docs/Web/API/HTMLVideoElement\"><code>HTMLVideoElement</code></a></li><li><a href=\"/ja/docs/Web/API/HashChangeEvent\"><code>HashChangeEvent</code></a></li><li><a href=\"/ja/docs/Web/API/History\"><code>History</code></a></li><li><a href=\"/ja/docs/Web/API/ImageData\"><code>ImageData</code></a></li><li><a href=\"/ja/docs/Web/API/Location\"><code>Location</code></a></li><li><a href=\"/ja/docs/Web/API/MessageChannel\"><code>MessageChannel</code></a></li><li><a href=\"/ja/docs/Web/API/MessageEvent\"><code>MessageEvent</code></a></li><li><a href=\"/ja/docs/Web/API/MessagePort\"><code>MessagePort</code></a></li><li><a href=\"/ja/docs/Web/API/Navigator\"><code>Navigator</code></a></li><li><a href=\"/ja/docs/Web/API/PageRevealEvent\"><code>PageRevealEvent</code></a></li><li><a href=\"/ja/docs/Web/API/PageSwapEvent\"><code>PageSwapEvent</code></a></li><li><a href=\"/ja/docs/Web/API/PageTransitionEvent\"><code>PageTransitionEvent</code></a></li><li><a href=\"/ja/docs/Web/API/Plugin\"><code>Plugin</code></a></li><li><a href=\"/ja/docs/Web/API/PluginArray\"><code>PluginArray</code></a></li><li><a href=\"/ja/docs/Web/API/PromiseRejectionEvent\"><code>PromiseRejectionEvent</code></a></li><li><a href=\"/ja/docs/Web/API/RadioNodeList\"><code>RadioNodeList</code></a></li><li><a href=\"/ja/docs/Web/API/UserActivation\"><code>UserActivation</code></a></li><li><a href=\"/ja/docs/Web/API/ValidityState\"><code>ValidityState</code></a></li><li><a href=\"/ja/docs/Web/API/Window\"><code>Window</code></a></li><li><a href=\"/ja/docs/Web/API/WorkletGlobalScope\"><code>WorkletGlobalScope</code></a></li></ol></details></li></ol>","sidebarMacro":"APIRef","body":[{"type":"prose","value":{"id":null,"title":null,"isH3":false,"content":"<p><strong><code>HTMLHtmlElement</code></strong> インターフェイスは、HTML 文書のルートノードとして機能します。このオブジェクトは <a href=\"/ja/docs/Web/API/HTMLElement\"><code>HTMLElement</code></a> インターフェイスで記述されたプロパティやメソッドを継承しています。</p>\n<p><code>HTMLHtmlElement</code> オブジェクトを文書から受け取るには、 <a href=\"/ja/docs/Web/API/Document/documentElement\"><code>document.documentElement</code></a> プロパティの値を読み取ります。</p><svg viewBox=\"-1 -1 650 42\" preserveAspectRatio=\"xMinYMin meet\">\n <a style=\"text-decoration: none;\" href=\"/ja/docs/Web/API/EventTarget\">\n <rect x=\"0\" y=\"0\" width=\"88\" height=\"25\" fill=\"#fff\" stroke=\"#D4DDE4\" stroke-width=\"2px\"></rect>\n <text x=\"44\" y=\"16\" font-size=\"10px\" fill=\"#4D4E53\" text-anchor=\"middle\">\n EventTarget\n </text>\n </a>\n <line x1=\"88\" y1=\"14\" x2=\"118\" y2=\"14\" stroke=\"#D4DDE4\"></line>\n <polyline points=\"88,14 98,9 98,19 88,14\" stroke=\"#D4DDE4\" fill=\"#fff\"></polyline>\n <a style=\"text-decoration: none;\" href=\"/ja/docs/Web/API/Node\">\n <rect x=\"118\" y=\"0\" width=\"75\" height=\"25\" fill=\"#fff\" stroke=\"#D4DDE4\" stroke-width=\"2px\"></rect>\n <text x=\"155.5\" y=\"16\" font-size=\"10px\" fill=\"#4D4E53\" text-anchor=\"middle\">\n Node\n </text>\n </a>\n <line x1=\"193\" y1=\"14\" x2=\"223\" y2=\"14\" stroke=\"#D4DDE4\"></line>\n <polyline points=\"193,14 203,9 203,19 193,14\" stroke=\"#D4DDE4\" fill=\"#fff\"></polyline>\n <a style=\"text-decoration: none;\" href=\"/ja/docs/Web/API/Element\">\n <rect x=\"223\" y=\"0\" width=\"75\" height=\"25\" fill=\"#fff\" stroke=\"#D4DDE4\" stroke-width=\"2px\"></rect>\n <text x=\"260.5\" y=\"16\" font-size=\"10px\" fill=\"#4D4E53\" text-anchor=\"middle\">\n Element\n </text>\n </a>\n <line x1=\"298\" y1=\"14\" x2=\"328\" y2=\"14\" stroke=\"#D4DDE4\"></line>\n <polyline points=\"298,14 308,9 308,19 298,14\" stroke=\"#D4DDE4\" fill=\"#fff\"></polyline>\n <a style=\"text-decoration: none;\" href=\"/ja/docs/Web/API/HTMLElement\">\n <rect x=\"328\" y=\"0\" width=\"88\" height=\"25\" fill=\"#fff\" stroke=\"#D4DDE4\" stroke-width=\"2px\"></rect>\n <text x=\"372\" y=\"16\" font-size=\"10px\" fill=\"#4D4E53\" text-anchor=\"middle\">\n HTMLElement\n </text>\n </a>\n <line x1=\"416\" y1=\"14\" x2=\"446\" y2=\"14\" stroke=\"#D4DDE4\"></line>\n <polyline points=\"416,14 426,9 426,19 416,14\" stroke=\"#D4DDE4\" fill=\"#fff\"></polyline>\n <a style=\"text-decoration: none;\" href=\"/ja/docs/Web/API/HTMLHtmlElement\" aria-current=\"page\">\n <rect x=\"446\" y=\"0\" width=\"120\" height=\"25\" fill=\"#F4F7F8\" stroke=\"#D4DDE4\" stroke-width=\"2px\"></rect>\n <text x=\"506\" y=\"16\" font-size=\"10px\" fill=\"#4D4E53\" text-anchor=\"middle\">\n HTMLHtmlElement\n </text>\n </a></svg>"}},{"type":"prose","value":{"id":"プロパティ","title":"プロパティ","isH3":false,"content":"<p><em>親である <a href=\"/ja/docs/Web/API/HTMLElement\"><code>HTMLElement</code></a> から継承したプロパティもあります。</em></p>\n<dl>\n <dt id=\"htmlhtmlelement.version\"><a href=\"/ja/docs/Web/API/HTMLHtmlElement/version\"><code>HTMLHtmlElement.version</code></a> <abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">非推奨</span>\n</abbr></dt>\n <dd>\n <p>この文書に適用される HTML 文書型定義 (DTD) のバージョンを表す文字列。このプロパティは不適合であるため、もう使用するべきではありません。省略してください。</p>\n </dd>\n</dl>"}},{"type":"prose","value":{"id":"メソッド","title":"メソッド","isH3":false,"content":"<p><em>独自のメソッドはありません。親である <a href=\"/ja/docs/Web/API/HTMLElement\"><code>HTMLElement</code></a> から継承したメソッドがあります。</em></p>"}},{"type":"specifications","value":{"title":"仕様書","id":"仕様書","isH3":false,"specifications":[{"bcdSpecificationURL":"https://html.spec.whatwg.org/multipage/semantics.html#htmlhtmlelement","title":"HTML Standard"}],"query":"api.HTMLHtmlElement"}},{"type":"browser_compatibility","value":{"title":"ブラウザーの互換性","id":"ブラウザーの互換性","isH3":false,"query":"api.HTMLHtmlElement"}},{"type":"prose","value":{"id":"関連情報","title":"関連情報","isH3":false,"content":"<ul>\n <li>このインターフェイスを実装している HTML 要素: <a href=\"/ja/docs/Web/HTML/Element/html\"><code><html></code></a></li>\n</ul>"}}],"toc":[{"text":"プロパティ","id":"プロパティ"},{"text":"メソッド","id":"メソッド"},{"text":"仕様書","id":"仕様書"},{"text":"ブラウザーの互換性","id":"ブラウザーの互換性"},{"text":"関連情報","id":"関連情報"}],"summary":"HTMLHtmlElement インターフェイスは、HTML 文書のルートノードとして機能します。このオブジェクトは HTMLElement インターフェイスで記述されたプロパティやメソッドを継承しています。","popularity":0,"modified":"2023-06-21T15:14:47.000Z","other_translations":[{"locale":"de","title":"HTMLHtmlElement","native":"Deutsch"},{"locale":"en-US","title":"HTMLHtmlElement","native":"English (US)"},{"locale":"zh-CN","title":"HTMLHtmlElement","native":"中文 (简体)"}],"pageType":"unknown","source":{"folder":"ja/web/api/htmlhtmlelement","github_url":"https://github.com/mdn/translated-content/blob/main/files/ja/web/api/htmlhtmlelement/index.md","last_commit_url":"https://github.com/mdn/translated-content/commit/40fc6269fe9730c9b619dff06a533af8efdf6289","filename":"index.md"},"short_title":"HTMLHtmlElement","parents":[{"uri":"/ja/docs/Web","title":"開発者向けのウェブ技術"},{"uri":"/ja/docs/Web/API","title":"Web API"},{"uri":"/ja/docs/Web/API/HTMLHtmlElement","title":"HTMLHtmlElement"}],"pageTitle":"HTMLHtmlElement - Web API | MDN","noIndexing":false}}</script></body></html>