Access the dimensions and position of this element's content + padding +border box.

This returns a rectangle with the dimensions actually available for contentin this element, in pixels, regardless of this element's box-sizingproperty. UnlikegetBoundingClientRect, the dimensions of this rectanglewill return the same numerical height if the element is hidden or not. Thiscan be used to retrieve jQuery'souterHeight value for an element.

Importantnote: use of this methodwill perform CSS calculations thatcan trigger a browser reflow. Therefore, use of this propertyduring ananimation frame is discouraged. See also:Browser Reflow

Implementation

CssRect get borderEdge => new _BorderCssRect(this);