AngleSharp by Florian Rappl

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

.NET API 737,792 bytes

 CSSCounterResetProperty

public sealed class CSSCounterResetProperty : CSSProperty
More information available at: https://developer.mozilla.org/en-US/docs/Web/CSS/counter-reset
public IEnumerable<string> Counters { get; }

Gets an enumeration over all counters.

public int this[string counter] { get; }

Gets the reset-value of the specified counter.