
&lt;!DOCTYPE html&gt;
&lt;html lang="en"&gt;
&lt;head&gt;
    &lt;meta charset="UTF-8"&gt;
    &lt;meta name="viewport" content="width=device-width, initial-scale=1.0"&gt;
    &lt;title&gt;Site Maintenance&lt;/title&gt;
    &lt;style&gt;
        body {
            font-family: Arial, sans-serif;
            background-color: #f4f4f4;
            color: #333;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            text-align: center;
            padding: 20px;
            box-sizing: border-box;
        }
        .container {
            background-color: #fff;
            padding: 30px 40px;
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        h1 {
            color: #505050;
            font-size: 24px;
        }
        p {
            font-size: 16px;
            line-height: 1.6;
        }
    &lt;/style&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;div class="container"&gt;
        &lt;h1&gt;Under Maintenance&lt;/h1&gt;
        &lt;p&gt;Our website is currently undergoing scheduled maintenance.&lt;/p&gt;
        &lt;p&gt;We expect to be back online shortly.&lt;/p&gt;
        &lt;p&gt;Thank you for your patience.&lt;/p&gt;
    &lt;/div&gt;
&lt;/body&gt;
&lt;/html&gt;