AngleSharp by Florian Rappl

<PackageReference Include="AngleSharp" Version="0.5.1" />

.NET API 737,792 bytes

 CSSTransformOriginProperty

public sealed class CSSTransformOriginProperty : CSSProperty
More information available at: https://developer.mozilla.org/en-US/docs/Web/CSS/transform-origin
public CSSCalcValue X { get; }

Gets how far from the left edge of the box the origin of the transform is set.

public CSSCalcValue Y { get; }

Gets how far from the top edge of the box the origin of the transform is set.

public CSSCalcValue Z { get; }

Gets how far from the user eye the z = 0 origin is set.