AngleSharp by Florian Rappl

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

.NET API 1,113,088 bytes

 ICssNamespaceRule

public interface ICssNamespaceRule : ICssRule
Represents a namespace declaration CSS rule.
string NamespaceUri { get; set; }

Gets the URI of the given namespace.

string Prefix { get; set; }

Gets the prefix associated to this namespace. If there is no such prefix, returns null.