show_my_name.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Name on click</title>
    <style>
        body{background-image: linear-gradient(to bottom right, red, yellow); height:400px ;}
        div{margin-top: 15em ;}
        #btn{background:rgb(0, 191, 255);color:white; padding:2%;border-radius:25%;font-weight:bold;}
        #btn:hover{background:rgb(20, 99, 209)}
        #disp{color:white;}
    </style>
</head>
<body>
    <div>
        <center>
            <input type="button" onclick="myFunction()" id="btn" name="Prasanna" value="Show">
            <h1 id="disp"></h1>
        </center>
    </div>
    
<script>
function myFunction() {
  var x = document.getElementById("btn").name;
  document.getElementById("disp").innerHTML = x;
}
</script>
</body>
</html>