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one-case-per-day
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20-kinetic-loader.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>kinetic-loader</title>
    <style>
        *{
            margin: 0;
            padding:0;
            box-sizing: border-box;
        }

        body {
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            background-color: #2c3e50;
        }

        .kinetic {
            position: relative;
            left: 0;
            top: 0;
            background-color: #fff;
        }

        .kinetic::before,.kinetic::after{
            position: absolute;
            left: 0;
            right: 0;
            content: '';
            width: 0;
            height: 0;
            border: 50px solid transparent;
            border-bottom:50px solid #fff;
        }

        .kinetic::before {
            transform: rotate(90deg);
            animation: rotateA 2s linear 0.5s infinite ;
        }

        .kinetic::after {
            animation: rotateB 2s linear infinite;
        }

        @keyframes rotateA {
            0%,
            25% {
                transform: rotate(0deg);
            }

            50%,
            75% {
                transform: rotate(180deg);
            }

            100% {
                transform: rotate(360deg);
            }
        }

        @keyframes rotateB {
            0%,
            25% {
                transform: rotate(90deg);
            }

            50%,
            75% {
                transform: rotate(270deg);
            }

            100% {
                transform: rotate(450deg);
            }
        }

    </style>
</head>
<body>
    <div class="kinetic"></div>

</body>
</html>