using System;

public class Program

{

    public static void Main()

    {

        var css = ".CodeMirror{font-family:monospace;height:300px;color:#000;direction:ltr}";

        Console.WriteLine($"Hello I've got a colon in my {css}");

        var now = DateTime.Now;

        Console.WriteLine($"Hello I've got a colon in intepolation expression {now:HH:mm:dd}");

​

        var later = DateTime.Now.AddMinutes(3);

        var earlier = DateTime.Now.AddMinutes(-3);

        Console.WriteLine($"Hello I've got a colon in intepolation expression {(now > DateTime.Now ? later : earlier)}");

​

    }

}