Online jQuery Editor

<!DOCTYPE html> <html> <head> <title>Try jQuery Online</title> <script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <script> $(document).ready(function() { $("em").addClass("selected"); $("#myid").addClass("highlight"); }); </script> <style> .selected { color:red; } .highlight { background:yellow; } </style> </head> <body> <em title="Bold and Brave">This is first paragraph.</em> <p id="myid">This is second paragraph. Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!");Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!");Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!");Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!");Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!");Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!");Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!"); Console.WriteLine("Hello, World!");</p> </body> </html>