Flash Button - MeggiTools

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Flash Button</title>
    <style>
        body {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            background-color: #aaa;
            margin: 0;
        }
        .flash-button {
            padding: 20px 40px;
            font-size: 18px;
            font-weight: bold;
            color: #fff;
            background: #e74c3c;
            border: none;
            border-radius: 30px;
            cursor: pointer;
            outline: none;
            transition: all 0.3s ease;
            animation: flash 1s infinite;
        }
        @keyframes flash {
            0% {
                background: #e74c3c;
            }
            50% {
                background: #c0392b;
            }
            100% {
                background: #e74c3c;
            }
        }
        .flash-button span {
            position: relative;
            z-index: 1;
        }
    </style>
</head>
<body>
    <button type="button" class="flash-button">
        <span>Flash</span>
    </button>
</body>
</html>