Demo selector trong jquery Live code

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>Học jquery</title>
</head>
<style type="text/css" media="screen">
    p{
        width: 100px;
        height: 100px;
        background: green;
    }
    button{
        position: absolute;
        left: 150px;
        top: 20px;
    }
</style>
<body>
    <p class="animation">Thẻ P animation</p>
    <p>Thẻ P</p>
    <p> Thẻ P</p>
    <p class="animation">Thẻ P animation</p>
    <button onclick="getanime()">Click</button>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){
            function anime()
            {
                $('.animation').slideToggle(1000,anime);
            }
            anime();
        });
        //chọn các thẻ div đang chuyển động.
        function getanime()
        {
            $('p:animated').css('color','yellow');
        }
    </script>
</body>
</html>