js

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <title>Document</title>
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/css/bootstrap.min.css" integrity="sha384-TX8t27EcRE3e/ihU7zmQxVncDAy5uIKz4rEkgIXeMed4M0jlfIDPvg6uqKI2xXr2" crossorigin="anonymous">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/animate.css/4.1.1/animate.min.css">
    <style>
        *{
            box-sizing: border-box;
        }
        html, body {
            align-items: center;
            background: gold;
            display: flex;
            justify-content: center;
            margin: 0;
            min-height: 100%;
            padding: 0;
            width: 100%;
        }
        div {
            background-color: firebrick;
            height: 100px;
            width: 100px;
            animation: rollIn 2s infinite;
        }
        p{
            font-size:32px;
            font-weight:bold;
            animation: fadeInDown 1s 1;
            color:firebrick;
        }
  </style>
</head>
<body>
    <div></div>
    <p>Animated text</p>
</body>
</html>