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La proprietà a sola lettura HTMLElement.offsetWidth restituisce la larghezza del layout di un elemento. In genere, l'offsetWidth di un elemento è la misura che include i bordi degli elementi, l'elemento di riempimento orizzontale, l'elemento scrollbar verticale (se presente) e l'elemento CSS "width".

Syntax

var offsetWidth =element.offsetWidth;

offsetWidth is a read-only property.

This property will round the value to an integer. If you need a fractional value, use element.getBoundingClientRect().

 

Example

 

             Image:Dimensions-offset.png

Specification

Specification Status Comment
CSS Object Model (CSSOM) View Module
The definition of 'offsetWidth' in that specification.
Working Draft  

Notes

offsetWidth is a property of the DHTML object model which was first introduced by MSIE. It is sometimes referred to as an element's physical/graphical dimensions, or an element's border-box width.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic support
Experimental
Chrome ? Edge Full support YesFirefox Full support 1IE Full support YesOpera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android ? Safari iOS ? Samsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.

See also

 

Tag del documento e collaboratori

Hanno collaborato alla realizzazione di questa pagina: SphinxKnight, kerby58
Ultima modifica di: SphinxKnight,