Code and Output for rt:

Code:

    <!DOCTYPE html>
    <html>
    <head>
      <title>HTML Example</title>
    </head>
    <body>
      <h1>The ruby and rt elements</h1>
      <ruby>漢 <rt>ㄏㄢˋ</rt>
    </ruby>
    </body>
    </html>

Output:

The ruby and rt elements

漢ㄏㄢˋ