AngleSharp by Florian Rappl

<PackageReference Include="AngleSharp" Version="0.8.5" />

.NET API 1,113,600 bytes

 CssMediaRule

Represents a CSS @media rule.
using AngleSharp.Css; using AngleSharp.Dom.Collections; using AngleSharp.Extensions; namespace AngleSharp.Dom.Css { internal sealed class CssMediaRule : CssConditionRule, ICssMediaRule, ICssConditionRule, ICssGroupingRule, ICssRule { private readonly MediaList _media; public string ConditionText { get { return _media.MediaText; } set { _media.MediaText = value; } } public IMediaList Media => _media; internal CssMediaRule() : this(new MediaList()) { } internal CssMediaRule(MediaList media) : base(CssRuleType.Media) { _media = media; } protected override void ReplaceWith(ICssRule rule) { base.ReplaceWith(rule); CssMediaRule cssMediaRule = rule as CssMediaRule; _media.Import(cssMediaRule._media); } internal override bool IsValid(RenderDevice device) { return _media.Validate(device); } protected override string ToCss() { return "@media " + _media.MediaText + " " + base.Rules.ToCssBlock(); } } }