AngleSharp by Florian Rappl

<PackageReference Include="AngleSharp" Version="0.5.1" />

.NET API 737,792 bytes

 TextDecorationLine

public enum TextDecorationLine
An enumeration that defines the various line styles.
Blink = 3

The text blinks (alternates between visible and invisible). Conforming user agents may simply not blink the text.

Each line of text has a line through the middle.

Each line of text has a line above it.

Each line of text is underlined.