Element: clientWidth property

The Element.clientWidth property is zero for inline elements and elements with no CSS; otherwise, it's the inner width of an element in pixels. It includes padding but excludes borders, margins, and vertical scrollbars (if present).

When clientWidth is used on the root element (the <html> element), (or on <body> if the document is in quirks mode), the viewport's width (excluding any scrollbar) is returned. This is a special case of clientWidth.

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

Value

A number.

Examples

An example element with large padding, border and margin. clientWidth is the inner width of the element including its padding, and excluding its margin, border, and vertical scrollbar.

Specifications

Specification
CSSOM View Module
# dom-element-clientwidth

Browser compatibility

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See also