AngleSharp by Florian Rappl

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

.NET API 1,172,480 bytes

 CssFontStyleProperty

Information: https://developer.mozilla.org/en-US/docs/Web/CSS/font-style
using AngleSharp.Css; using AngleSharp.Extensions; namespace AngleSharp.Dom.Css { internal sealed class CssFontStyleProperty : CssProperty, ICssFontStyleProperty, ICssProperty { internal static readonly FontStyle Default = FontStyle.Normal; internal static readonly IValueConverter<FontStyle> Converter = Map.FontStyles.ToConverter(); private FontStyle _style; public FontStyle Style => _style; internal CssFontStyleProperty(CssStyleDeclaration rule) : base(PropertyNames.FontStyle, rule, PropertyFlags.Inherited) { Reset(); } private void SetStyle(FontStyle style) { _style = style; } internal override void Reset() { _style = Default; } protected override bool IsValid(ICssValue value) { return Converter.TryConvert(value, SetStyle); } } }