/* source: laerer.htm style block 1 */
body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 20px;
            text-align: left;
            background-color: #f4f4f4;
        }

        .container {
            max-width: 800px;
            margin: auto;
            background: white;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
        }

        h1 {
            color: #4CAF50;
        }

        p {
            font-size: 18px;
        }

        .button-container {
            margin-top: 20px;
        }

        .button {
            display: inline-block;
            padding: 10px 20px;
            margin-right: 10px;
            font-size: 18px;
            color: white;
            background-color: #4CAF50;
            text-decoration: none;
            border-radius: 5px;
        }

        .button:hover {
            background-color: #388E3C;
        }