using AngleSharp.Css; namespace AngleSharp.Dom.Css { internal sealed class OrientationMediaFeature : MediaFeature { private static readonly IValueConverter TheConverter = Converters.Toggle(Keywords.Portrait, Keywords.Landscape); internal override IValueConverter Converter => TheConverter; public OrientationMediaFeature() : base(FeatureNames.Orientation) { } public override bool Validate(RenderDevice device) { bool flag = device.DeviceHeight >= device.DeviceWidth; return !flag; } } }