Edit in JSFiddle

Result
JavaScript
HTML

$(document).ready(function () {
                $("#removeId").click(function () {
                    $("#targetP").remove();
                    $("#targetDiv").remove();
                });
                $("#removeClass").click(function () {
                    $(".default").remove();
                });
            });

<html>
        <head>
        <title>remove</title>
        </head>
        <body>
        <p id="targetP" class="default">This is p element.</p>
        <div id="targetDiv" class="default">This is div element.</div><br />
        <input type="button" id="removeId" value="Remove using Id selector"/>
        <input type="button" id="removeClass" value="Remove using Class selector"/>
        <input type="button" id="reset" value="Reset" onclick="location.reload()" />
        </body>
        </html>