Access this element's content position.
This returns a rectangle with the dimensions actually available for content in this element, in pixels, regardless of this element's box-sizing property. Unlike getBoundingClientRect, the dimensions of this rectangle will return the same numerical height if the element is hidden or not.
Important note: use of this method will perform CSS calculations that can trigger a browser reflow. Therefore, use of this property during an animation frame is discouraged. See also: Browser Reflow
CssRect get contentEdge => new _ContentCssRect(this);
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Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-html/Element/contentEdge.html