DOMRectReadOnly: top property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.

See full compatibility

Note: This feature is available in Web Workers.

The top read-only property of the DOMRectReadOnly interface returns the top coordinate value of the DOMRect. (Has the same value as y, or y + height if height is negative.)

Value

A double.

Specifications

Specification
Geometry Interfaces Module Level 1 # dom-domrectreadonly-top

Browser compatibility

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`top`	Chrome – Full support Chrome 2 (Release date: 2009-05-21) footnote Full support	Edge – Full support Edge 12 (Release date: 2015-07-29) footnote Full support	Firefox – Full support Firefox 3 (Release date: 2008-06-17) footnote Full support	Opera – Full support Opera 9.5 (Release date: 2008-06-12) footnote Full support	Safari – Full support Safari 4 (Release date: 2009-06-08) footnote Full support	Chrome Android – Full support Chrome Android 18 (Release date: 2012-06-27) footnote Full support	Firefox for Android – Full support Firefox for Android 4 (Release date: 2011-03-29) footnote Full support	Opera Android – Full support Opera Android 10.1 (Release date: 2010-11-09) footnote Full support	Safari on iOS – Full support Safari on iOS 3.2 (Release date: 2010-04-03) footnote Full support	Samsung Internet – Full support Samsung Internet 1 (Release date: 2013-04-27) footnote Full support	WebView Android – Full support WebView Android 2 (Release date: 2009-10-26) footnote Full support	WebView on iOS – Full support WebView on iOS 3.2 (Release date: 2010-04-03) footnote Full support

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Full support: Full support

DOMRectReadOnly: top property

Value

Specifications

Browser compatibility

Legend

See also