AngleSharp by Florian Rappl

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

.NET API 844,288 bytes

 HTMLTableColElement

sealed class HTMLTableColElement : HTMLElement, IHtmlTableColumnElement, IHtmlElement, IElement, INode, IEventTarget, IParentNode, IChildNode, IElementCssInlineStyle
Represents the HTML column (col / colgroup) element.
public HorizontalAlignment Align { get; set; }

Gets or sets the value of the horizontal alignment attribute.

public int Span { get; set; }

Gets or sets the number of columns in a group or affected by a grouping.

public VerticalAlignment VAlign { get; set; }

Gets or sets the value of the vertical alignment attribute.

public string Width { get; set; }

Gets or sets the value of the width attribute.