SVG Spinner Loading

<!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>SVG Progress Spinner</title>
    <style>
        body {
            background-color: #0d0d0d;
        }
       section {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
            width: 100%;
            height: 100vh;
       }

       .spinner {
           position: absolute;
           top: 0;
           left: 0;
           right: 0;
           bottom: 0;
           margin: auto;
           width: 350px;
           height: 350px;
           animation: rotate 2s linear infinite;
       }

       .spinner circle {
           stroke: #fff;
           fill: none;
           stroke-width: 2px;
           stroke-linecap: round;
           filter: drop-shadow(0 0 3px #ff33ff);
           animation: dash 1.5s ease-in-out infinite;
       }

       h3 {
           color: #fff;
           font-size: 25px;
           text-shadow: 0 0 5px #ff33ff;
       }

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

       @keyframes dash {
           0% {
               stroke-dasharray: 1, 150;
               stroke-dashoffset: 0;
           }

           50% {
               stroke-dasharray: 90, 150;
               stroke-dashoffset: -35;
           }

           100% {
               stroke-dasharray: 90, 150;
               stroke-dashoffset: -124;
           }
       }

    </style>
</head>
<body>
    <section>
        <svg class="spinner" viewBox="0 0 100 100">
            <circle cx="50" cy="50" r="20"></circle>
        </svg>
        <h3>CSS 3</h3>
    </section>
</body>
</html>
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Result Screenshot(s)

SVG Spinner LoadingWorking Sample0