HTMLElement.offsetWidth

The HTMLElement.offsetWidth read-only property returns the layout width of an element. 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.

Syntax

var offsetWidth =element.offsetWidth;

offsetWidth is a read-only property.

Example

Specification

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

In compliance with the specification, this property will return null on Webkit if the element is hidden (the style.display of this element or any ancestor is "none") or if the style.position of the element itself is set to "fixed".

This property will return null on Internet Explorer (9) if the style.position of the element itself is set to "fixed". (Having display:none does not affect this browser.)

See also

• Element.clientWidth
• Element.scrollWidth
• Determining the dimensions of elements
• MSDN: offsetWidth Property
• MSDN: Measuring Element Dimension and Location