AngleSharp by Florian Rappl

<PackageReference Include="AngleSharp" Version="0.6.0" />

 MediaFeature

public abstract class MediaFeature : ICssObject
Represents a feature expression within a media query.
public string Name { get; }

Gets the name of the feature.

public CSSValue Value { get; protected set; }

Gets the value of the feature.

public string ToCss()

Returns a CSS code representation of the medium.

public abstract bool Validate(IWindow window)

Validates the given feature.