Animated Scroll Down Arrow

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Animated Scroll Down Arrow</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        body { background-color: #292929; }

        section {
            width: 100%;
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        ul#downArrow {
            position: relative;
            width: 40px;
            display: flex;
            align-items: center;
            flex-flow: column;
        }

        ul#downArrow li {
            list-style: none;
            width: 8px;
            height: 8px;
            background-color: #fff;
            border-radius: 100%;
            margin-bottom: 10px;
            animation: ani 0.8s infinite ease-in-out;
            animation-delay: calc(0.2s * var(--i));
        }

        ul#downArrow::before,
        ul#downArrow::after {
            position: absolute;
            content: '';
            background-color: #fff;
            width: 30px;
            height: 3px;
            bottom: 0;
        }

        ul#downArrow::before {
            right: 0;
            transform: rotate(-45deg);
            transform-origin: center right;
        }

        ul#downArrow::after {
            left: 0;
            transform: rotate(45deg);
            transform-origin: center left;
        }

        @keyframes ani {
            0% {
                opacity: 0;
                transform: scale(0.5) translateY(-5px);
            }

            50% {
                opacity: 1;
                transform: scale(1) translateY(20px);
            }

            100% {
                opacity: 0;
                transform: scale(0.5) translateY(40px);
            }
            
        }
    </style>
</head>
<body>
    <section>
        <ul id="downArrow">
            <li style="--i:1"></li>
            <li style="--i:2"></li>
            <li style="--i:3"></li>
        </ul>
    </section>
</body>
</html>
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Result Screenshot(s)

Animated Scroll Down ArrowWorking Sample0