Code and Output for dialog:

Code:

    <!DOCTYPE html>
    <html>
    <head>
      <title>HTML Example</title>
    </head>
    <body>
      <h1>App Genesis soft solutions pvt ltd</h1>
      <h1>The dialog element</h1>
      <p>This is some text.</p>
      <p>This is some text.</p>
      <dialog open>This is an open dialog window
      <p>This is some text.</p>
      <p>This is some text.</p>
    </body>
    </html>
  

Output:

App Genesis soft solutions pvt ltd

The dialog element

This is some text.

This is some text.

This is some text.

This is some text.