This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

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.)


var recTop =;


A double.


Specification Status Comment
Geometry Interfaces Module Level 1
The definition of 'top' in that specification.
Candidate Recommendation Latest spec version is an ED.

Browser compatibility

BCD tables only load in the browser

See also