AngleSharp by Florian Rappl

<PackageReference Include="AngleSharp" Version="0.2.3" />

 CssAtRule

Represents a CSS @rule.
using System.Text; namespace AngleSharp.Css { internal class CssAtRule : CssNamedRule { public CssBlock Value { get; set; } public override string ToString() { StringBuilder stringBuilder = new StringBuilder(); stringBuilder.Append('@').Append(base.Name); for (int i = 0; i < base.Prelude.Count; i++) { stringBuilder.Append(base.Prelude[i]); } stringBuilder.Append(Value); return stringBuilder.ToString(); } } }