AngleSharp by Florian Rappl

<PackageReference Include="AngleSharp" Version="0.8.4.1" />

.NET API 1,229,312 bytes

 CssBorderImageSourceProperty

More information available at: https://developer.mozilla.org/en-US/docs/Web/CSS/border-image-source
using AngleSharp.Css; using AngleSharp.Extensions; namespace AngleSharp.Dom.Css { internal sealed class CssBorderImageSourceProperty : CssProperty { internal CssBorderImageSourceProperty(CssStyleDeclaration rule) : base(PropertyNames.BorderImageSource, rule, PropertyFlags.None) { } protected override object GetDefault(IElement element) { return null; } protected override object Compute(IElement element) { return Converters.OptionalImageSourceConverter.Convert(base.Value); } protected override bool IsValid(CssValue value) { return Converters.OptionalImageSourceConverter.Validate(value); } } }