That would be an HTML Encoded Line Feed character (using the hexadecimal value).
The decimal value would be
It is the equivalent to \n -> LF (Line Feed).
Sometimes it is used in HTML and JavaScript. Otherwise in .NET environments, use Environment.NewLine.
Environment.NewLine
It's the ASCII/UTF code for LF (0A) - Unix-based systems are using it as the newline character, while Windows uses the CR-LF PAIR (OD0A).
LF
0A
OD0A