Code and Output for headings:

Code:

    <!DOCTYPE html>
    <html>
    <head>
      <title>Title of the document</title>
    </head>

    <body>
      <h1>App Genesis soft solutions pvt ltd</h1>
      <h2>App Genesis soft solutions pvt ltd</h2>
      <h3>App Genesis soft solutions pvt ltd</h3>
      <h4>App Genesis soft solutions pvt ltd</h4>
      <h5>App Genesis soft solutions pvt ltd</h5>
      <h6>App Genesis soft solutions pvt ltd</h6>
    </body>
    </html>

Output:

App Genesis soft solutions pvt ltd