JavaScript/jQuery/css/cssMethod.html at master · lgope/JavaScript · GitHub

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<!DOCTYPE html>
<html>

<head>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
    <script>
        $(document).ready(function () {
            $("#setCssBtn").click(function () {
                $("p").css({ "background-color": "#ace60e", "font-size": "210%" });
            });

            $("#removeStylesBtn").click(function () {
                $("p").removeAttr("style");
            });
        });
    </script>
</head>

<body>

    <h2>This is a heading</h2>

    <p style="background-color:#ff0000">This is a paragraph 1.</p>
    <p style="background-color:#00ff00">This is a paragraph 2.</p>
    <p style="background-color:#0000ff">This is a paragraph 3.</p>

    <p>This is a paragraph 4.</p>

    <button id="setCssBtn">Set multiple styles for p</button>
    <button id="removeStylesBtn">Remove multiple styles</button>

</body>

</html>