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Title: HTMLImageElement: width プロパティ - Web API | MDN

Open Graph Title: HTMLImageElement: width プロパティ - Web API | MDN

Description: width は HTMLImageElement インターフェイスのプロパティで、画像が画面やプリンターなどの視覚媒体に描画または表示される場合は CSS ピクセル単位で、それ以外は画像のピクセル密度補正後の幅を表します。

Open Graph Description: width は HTMLImageElement インターフェイスのプロパティで、画像が画面やプリンターなどの視覚媒体に描画または表示される場合は CSS ピクセル単位で、それ以外は画像のピクセル密度補正後の幅を表します。

Opengraph URL: https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width

direct link

Domain: developer.mozilla.org

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og:image:height1024
og:image:width1024
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Links:

メインコンテンツへスキップhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#content
検索へスキップhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#search
MDN https://developer.mozilla.org/ja/
HTML: Markup languagehttps://developer.mozilla.org/ja/docs/Web/HTML
Elementshttps://developer.mozilla.org/ja/docs/Web/HTML/Reference/Elements
Global attributeshttps://developer.mozilla.org/ja/docs/Web/HTML/Reference/Global_attributes
Attributeshttps://developer.mozilla.org/ja/docs/Web/HTML/Reference/Attributes
See all…https://developer.mozilla.org/ja/docs/Web/HTML/Reference
Responsive imageshttps://developer.mozilla.org/ja/docs/Web/HTML/Guides/Responsive_images
HTML cheatsheethttps://developer.mozilla.org/ja/docs/Web/HTML/Guides/Cheatsheet
Date & time formatshttps://developer.mozilla.org/ja/docs/Web/HTML/Guides/Date_and_time_formats
See all…https://developer.mozilla.org/ja/docs/Web/HTML/Guides
SVGhttps://developer.mozilla.org/ja/docs/Web/SVG
MathMLhttps://developer.mozilla.org/ja/docs/Web/MathML
XMLhttps://developer.mozilla.org/ja/docs/Web/XML
CSS: Styling languagehttps://developer.mozilla.org/ja/docs/Web/CSS
Propertieshttps://developer.mozilla.org/ja/docs/Web/CSS/Reference/Properties
Selectorshttps://developer.mozilla.org/ja/docs/Web/CSS/Reference/Selectors
At-ruleshttps://developer.mozilla.org/ja/docs/Web/CSS/Reference/At-rules
Valueshttps://developer.mozilla.org/ja/docs/Web/CSS/Reference/Values
See all…https://developer.mozilla.org/ja/docs/Web/CSS/Reference
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Animationshttps://developer.mozilla.org/ja/docs/Web/CSS/Guides/Animations/Using
Flexboxhttps://developer.mozilla.org/ja/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts
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See all…https://developer.mozilla.org/ja/docs/Web/CSS/Guides
Column layoutshttps://developer.mozilla.org/ja/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts
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開発者向けのウェブ技術https://developer.mozilla.org/ja/docs/Web
Web APIhttps://developer.mozilla.org/ja/docs/Web/API
HTMLImageElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement
widthhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width
https://github.com/orgs/mdn/discussions/739
https://developer.mozilla.org/de/docs/Web/API/HTMLImageElement/width
https://developer.mozilla.org/en-US/docs/Web/API/HTMLImageElement/width
https://developer.mozilla.org/fr/docs/Web/API/HTMLImageElement/width
https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width
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。https://developer.mozilla.org/ja/docs/MDN/Community/Contributing/Translated_content#アクティブなロケール
https://developer.mozilla.org/en-US/docs/Web/API/HTMLImageElement/width
もっと詳しく https://developer.mozilla.org/ja/docs/Glossary/Baseline/Compatibility
完全な互換性情報を見る https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#ブラウザーの互換性
HTMLImageElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement
CSS ピクセルhttps://developer.mozilla.org/ja/docs/Glossary/CSS_pixel
値https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#値
例https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#例
仕様書https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#仕様書
ブラウザーの互換性https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#ブラウザーの互換性
関連情報https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#関連情報
値https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#値
CSS ピクセルhttps://developer.mozilla.org/ja/docs/Glossary/CSS_pixel
naturalWidthhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/naturalWidth
例https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#例
srcsethttps://developer.mozilla.org/ja/docs/Web/HTML/Reference/Elements/img#srcset
sizeshttps://developer.mozilla.org/ja/docs/Web/HTML/Reference/Elements/img#sizes
HTMLhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#html
JavaScripthttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#javascript
loadhttps://developer.mozilla.org/ja/docs/Web/API/Window/load_event
resizehttps://developer.mozilla.org/ja/docs/Web/API/Window/resize_event
結果https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#結果
独自のウィンドウhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#livesample_fullscreen=examples
仕様書https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#仕様書
HTML# dom-img-width-devhttps://html.spec.whatwg.org/multipage/embedded-content.html#dom-img-width-dev
ブラウザーの互換性https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#ブラウザーの互換性
関連情報https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width#関連情報
HTMLCanvasElement.widthhttps://developer.mozilla.org/ja/docs/Web/API/HTMLCanvasElement/width
HTMLEmbedElement.widthhttps://developer.mozilla.org/en-US/docs/Web/API/HTMLEmbedElement/width
HTMLIFrameElement.widthhttps://developer.mozilla.org/ja/docs/Web/API/HTMLIFrameElement/width
HTMLObjectElement.widthhttps://developer.mozilla.org/ja/docs/Web/API/HTMLObjectElement/width
HTMLSourceElement.widthhttps://developer.mozilla.org/en-US/docs/Web/API/HTMLSourceElement/width
HTMLVideoElement.widthhttps://developer.mozilla.org/ja/docs/Web/API/HTMLVideoElement/width
協力方法を知るhttps://developer.mozilla.org/ja/docs/MDN/Community/Getting_started
MDN の貢献者https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width/contributors.txt
GitHub でこのページを表示https://github.com/mdn/translated-content/blob/main/files/ja/web/api/htmlimageelement/width/index.md?plain=1
このコンテンツに関する問題を報告https://github.com/mdn/translated-content/issues/new?template=page-report-ja.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fja%2Fdocs%2FWeb%2FAPI%2FHTMLImageElement%2Fwidth&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60ja%2Fweb%2Fapi%2Fhtmlimageelement%2Fwidth%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fja%2Fdocs%2FWeb%2FAPI%2FHTMLImageElement%2Fwidth%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Ftranslated-content%2Fblob%2Fmain%2Ffiles%2Fja%2Fweb%2Fapi%2Fhtmlimageelement%2Fwidth%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Ftranslated-content%2Fcommit%2F7a293d18d81ffe6124da00a6be607ecbc6539cad%0A*+Document+last+modified%3A+2026-06-15T12%3A31%3A30.000Z%0A%0A%3C%2Fdetails%3E
HTML DOM APIhttps://developer.mozilla.org/ja/docs/Web/API/HTML_DOM_API
HTMLImageElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement
Image()https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/Image
alignhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/align
althttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/alt
attributionSrchttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/attributionSrc
borderhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/border
completehttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/complete
crossOriginhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/crossOrigin
currentSrchttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/currentSrc
decodinghttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/decoding
fetchPriorityhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/fetchPriority
heighthttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/height
hspacehttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/hspace
isMaphttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/isMap
loadinghttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/loading
longDeschttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/longDesc
namehttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/name
naturalHeighthttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/naturalHeight
naturalWidthhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/naturalWidth
referrerPolicyhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/referrerPolicy
sizeshttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/sizes
srchttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/src
srcsethttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/srcset
useMaphttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/useMap
vspacehttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/vspace
widthhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/width
xhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/x
yhttps://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/y
decode()https://developer.mozilla.org/ja/docs/Web/API/HTMLImageElement/decode
HTMLElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLElement
Elementhttps://developer.mozilla.org/ja/docs/Web/API/Element
Nodehttps://developer.mozilla.org/ja/docs/Web/API/Node
EventTargethttps://developer.mozilla.org/ja/docs/Web/API/EventTarget
BeforeUnloadEventhttps://developer.mozilla.org/ja/docs/Web/API/BeforeUnloadEvent
DOMStringMaphttps://developer.mozilla.org/ja/docs/Web/API/DOMStringMap
ErrorEventhttps://developer.mozilla.org/ja/docs/Web/API/ErrorEvent
HTMLAnchorElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLAnchorElement
HTMLAreaElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLAreaElement
HTMLAudioElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLAudioElement
HTMLBRElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLBRElement
HTMLBaseElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLBaseElement
HTMLBodyElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLBodyElement
HTMLButtonElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLButtonElement
HTMLCanvasElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLCanvasElement
HTMLDListElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLDListElement
HTMLDataElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLDataElement
HTMLDataListElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLDataListElement
HTMLDialogElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLDialogElement
HTMLDivElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLDivElement
HTMLDocumenthttps://developer.mozilla.org/ja/docs/Web/API/HTMLDocument
HTMLElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLElement
HTMLEmbedElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLEmbedElement
HTMLFieldSetElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLFieldSetElement
HTMLFormControlsCollectionhttps://developer.mozilla.org/ja/docs/Web/API/HTMLFormControlsCollection
HTMLFormElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLFormElement
HTMLFrameSetElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLFrameSetElement
HTMLGeolocationElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLGeolocationElement
HTMLHRElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLHRElement
HTMLHeadElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLHeadElement
HTMLHeadingElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLHeadingElement
HTMLHtmlElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLHtmlElement
HTMLIFrameElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLIFrameElement
HTMLInputElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLInputElement
HTMLLIElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLLIElement
HTMLLabelElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLLabelElement
HTMLLegendElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLLegendElement
HTMLLinkElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLLinkElement
HTMLMapElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLMapElement
HTMLMediaElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLMediaElement
HTMLMenuElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLMenuElement
HTMLMetaElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLMetaElement
HTMLMeterElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLMeterElement
HTMLModElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLModElement
HTMLOListElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLOListElement
HTMLObjectElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLObjectElement
HTMLOptGroupElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLOptGroupElement
HTMLOptionElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLOptionElement
HTMLOptionsCollectionhttps://developer.mozilla.org/ja/docs/Web/API/HTMLOptionsCollection
HTMLOutputElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLOutputElement
HTMLParagraphElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLParagraphElement
HTMLPictureElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLPictureElement
HTMLPreElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLPreElement
HTMLProgressElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLProgressElement
HTMLQuoteElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLQuoteElement
HTMLScriptElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLScriptElement
HTMLSelectElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLSelectElement
HTMLSourceElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLSourceElement
HTMLSpanElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLSpanElement
HTMLStyleElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLStyleElement
HTMLTableCaptionElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLTableCaptionElement
HTMLTableCellElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLTableCellElement
HTMLTableColElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLTableColElement
HTMLTableElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLTableElement
HTMLTableRowElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLTableRowElement
HTMLTableSectionElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLTableSectionElement
HTMLTemplateElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLTemplateElement
HTMLTextAreaElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLTextAreaElement
HTMLTimeElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLTimeElement
HTMLTitleElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLTitleElement
HTMLTrackElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLTrackElement
HTMLUListElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLUListElement
HTMLUnknownElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLUnknownElement
HTMLVideoElementhttps://developer.mozilla.org/ja/docs/Web/API/HTMLVideoElement
HashChangeEventhttps://developer.mozilla.org/ja/docs/Web/API/HashChangeEvent
Historyhttps://developer.mozilla.org/ja/docs/Web/API/History
ImageDatahttps://developer.mozilla.org/ja/docs/Web/API/ImageData
Locationhttps://developer.mozilla.org/ja/docs/Web/API/Location
MessageChannelhttps://developer.mozilla.org/ja/docs/Web/API/MessageChannel
MessageEventhttps://developer.mozilla.org/ja/docs/Web/API/MessageEvent
MessagePorthttps://developer.mozilla.org/ja/docs/Web/API/MessagePort
Navigatorhttps://developer.mozilla.org/ja/docs/Web/API/Navigator
PageRevealEventhttps://developer.mozilla.org/ja/docs/Web/API/PageRevealEvent
PageSwapEventhttps://developer.mozilla.org/ja/docs/Web/API/PageSwapEvent
PageTransitionEventhttps://developer.mozilla.org/ja/docs/Web/API/PageTransitionEvent
Pluginhttps://developer.mozilla.org/ja/docs/Web/API/Plugin
PluginArrayhttps://developer.mozilla.org/ja/docs/Web/API/PluginArray
PromiseRejectionEventhttps://developer.mozilla.org/ja/docs/Web/API/PromiseRejectionEvent
RadioNodeListhttps://developer.mozilla.org/ja/docs/Web/API/RadioNodeList
TimeRangeshttps://developer.mozilla.org/ja/docs/Web/API/TimeRanges
UserActivationhttps://developer.mozilla.org/ja/docs/Web/API/UserActivation
ValidityStatehttps://developer.mozilla.org/ja/docs/Web/API/ValidityState
Windowhttps://developer.mozilla.org/ja/docs/Web/API/Window
WorkletGlobalScopehttps://developer.mozilla.org/ja/docs/Web/API/WorkletGlobalScope
In depth: Microtasks and the JavaScript runtime environmenthttps://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API/Microtask_guide/In_depth
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テレメトリー設定https://www.mozilla.org/en-US/privacy/websites/data-preferences/
法的情報https://www.mozilla.org/about/legal/terms/mozilla
コミュニティ参加ガイドラインhttps://www.mozilla.org/about/governance/policies/participation/
クリエイティブ・コモンズ・ライセンスhttps://developer.mozilla.org/docs/MDN/Writing_guidelines/Attrib_copyright_license

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URLs of crawlers that visited me.