addClass and removeClass method in jQuery

 <!DOCTYPE html>

<html>

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>addClass and removeClass jQuery</title>
    <style>
        body {
            font-family: arial
        }

        #box {
            padding: 10px;
            border: 1px solid #000;
        }

        .first {
            background: tan;
        }

        .second {
            background: pink;
        }
    </style>
</head>

<body>
    <h1>jQuery Class Methods</h1>
    <div id="box">
        <h2>Test Box</h2>
        <p>Lorem ipsum, <span>dolor sit amet</span> consectetur adipisicing elit. Recusandae labore natus blanditiis
            doloribus nesciunt, autem doloremque laborum, expedita accusantium id unde repellendus velit nemo, obcaecati
            tempore iure similique a aliquam.</p>
    </div>
    <br>
    <button id="addbutton">Add Class</button>
    <button id="removebutton">Remove Class</button>
    <button id="togglebutton">Toggle Class</button>
    <script src="js/jquery-3.7.1.min.js"></script>
    <script>
        $("#addbutton").click(function () {
            $("#box, h1").addClass("first second");
        });

        $("#removebutton").click(function () {
            $("#box").removeClass("second");
        });

        $("#togglebutton").click(function () {
            $("#box, h1").toggleClass("second");
        });
    </script>
</body>

</html>





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