examples/jquery/methods2.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Methods example #2</title>
    <style>
        div {
            border: 1px solid grey;
            margin: 10px;
            background-color: blue;
            float: left;
        }
        .square {
            width: 100px;
            height: 100px;
        }
        .red {
            background-color: red;
        }
    </style>
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>
    <script>
        $(document).ready(function () {
            $("div").addClass("square");
            $("div").mouseenter(function () {
                $(this).css("border", "2px double black");
            });
            $("div").mouseleave(function () {
                $(this).css("border", "1px solid grey");
            });
            $("div").click(function () {
                $(this).toggleClass("red");
            });
        });
    </script>
</head>
<body>
    <div></div>
    <div></div>
    <div></div>
</body>
</html>