Edit in JSFiddle

$(document).ready(function () {
                $("#myButton").click(function () {
                    $("#targetP").before("<h3>Jquery is easy to learn.</h3>")
                });
            });
<html>
        <head>
        <title>before</title> 
        </head>
        <body>
        <p id="targetP">Jquery is amazing.</p>
        <br />
        <input type="button" id="myButton" value="Before"/>
        <input type="button" id="reset" value="reset" onclick="location.reload()" />
        </body>
        </html>