Code and Output for frameset:

Code:

    <!DOCTYPE html>
    <html>
    <head>
      <title>HTML Example</title>
    </head>
      
      <frameset cols = "25%,50%,25%">
        <frame name = "left" src = "frame1.html" />
        <frame name = "center" src = "frame2.html" />
        <frame name = "right" src = "frame3.html" />
    </frameset>
     <noframes>
      <body>Your browser does not support frames.</body>
    </noframes>
    </html>

Output:

frame,frameset,noframes does not support html5

<body>Your browser does not support frames.</body>