bottone cambia

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <button id="bottone" style="background-color: aliceblue;" onclick="cambiaTesto()">Cambio
    </button>

    <script>
        function cambiaTesto(){
            document.getElementById("bottone").innerHTML="Ciao";
        }
    </script>

</body>
</html>