加车飞球动画

Document
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .ball {
            position: fixed;
            z-index: 1010;
            width: 20px;
            height: 20px;
            transition: all 0.5s linear ;
            
            /* transition-delay: 2s; */
        }
        .innerBall {
            width: 100%;
            height: 100%;
            background: red;
            border-radius: 50%;
            overflow: hidden;
            transition: all 0.5s cubic-bezier(0.55, 0, 0.85, .36) ;
            
        }
    </style>
    <script>
        window.onload = function() {
            document.getElementById('ball').style = 'transform: translate(100px, 0px);'
            document.getElementById('innerBall').style = 'transform: translate(0px, 200px);'
        }
    </script>
</head>

<body>

    <div id="ball" class="ball">
        <div id="innerBall" class="innerBall">

        </div>
    </div>
</body>

</html>