AngleSharp by Florian Rappl

<PackageReference Include="AngleSharp" Version="0.7.0" />

.NET API 997,888 bytes

CSSPaddingLeftProperty

sealed class CSSPaddingLeftProperty : CSSPaddingPartProperty, ICssPaddingLeftProperty, ICssProperty

Information can be found on MDN: https://developer.mozilla.org/en-US/docs/Web/CSS/padding-left

public IDistance Left { get; }