AngleSharp by Florian Rappl

<PackageReference Include="AngleSharp" Version="0.5.0" />

.NET API 681,472 bytes

 CSSOrphansProperty

public sealed class CSSOrphansProperty : CSSProperty
Information can be found on MDN: https://developer.mozilla.org/en-US/docs/Web/CSS/orphans
public int Count { get; }

Gets the minimum number of lines in a block container that must be left at the bottom of the page.