AngleSharp by Florian Rappl

<PackageReference Include="AngleSharp" Version="0.8.1" />

.NET API 1,172,480 bytes

 CssColumnRuleStyleProperty

More information available at: https://developer.mozilla.org/en-US/docs/Web/CSS/column-rule-style
using AngleSharp.Css; using AngleSharp.Extensions; namespace AngleSharp.Dom.Css { internal sealed class CssColumnRuleStyleProperty : CssProperty, ICssColumnRuleStyleProperty, ICssProperty { internal static readonly LineStyle Default = LineStyle.None; internal static readonly IValueConverter<LineStyle> Converter = Map.LineStyles.ToConverter(); private LineStyle _style; public LineStyle Style => _style; internal CssColumnRuleStyleProperty(CssStyleDeclaration rule) : base(PropertyNames.ColumnRuleStyle, rule, PropertyFlags.None) { Reset(); } public void SetStyle(LineStyle style) { _style = style; } internal override void Reset() { _style = Default; } protected override bool IsValid(ICssValue value) { return Converter.TryConvert(value, SetStyle); } } }