AngleSharp by Florian Rappl

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

.NET API 844,288 bytes

 CSSColumnCountProperty

public sealed class CSSColumnCountProperty : CSSProperty
More information available at: https://developer.mozilla.org/en-US/docs/Web/CSS/column-count
public int Count { get; }

Gets the number of columns.

public bool IsUsed { get; }

Gets if the column count should be considered.