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Gecko DOM Reference

offsetWidth

DHTML property that gets the width of an element relative to the layout.

Syntax and values

var intElemOffsetWidth = document.getElementById(id_attribute_value).offsetWidth;

intElemOffsetWidth is a variable storing an integer corresponding to the offsetWidth pixel value of the element.
offsetWidth is a read-only property.

Description

Typically, an element's offsetWidth is a measurement which includes the element borders, the element horizontal padding, the element vertical scrollbar (if present, if rendered) and the element CSS width.

Example

Left Top Right Bottom margin-top margin-bottom border-top border-bottom

padding-top

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padding-bottom

Dimensions and borderlines of offsetWidth

Specification

offsetWidth is part of the MSIE's DHTML object model.
offsetWidth is not part of any W3C specification or technical recommendation.

Notes

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

References

Report errors or corrections or relevant feedback about this file (bug 196779);
web design questions will be ignored.

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