body {
            font-family: Arial, sans-serif;
            padding: 20px;
            width: 95%;
            max-width: 800px;
            margin: 0 auto;
        }

        h1 {
            font-size: 150%;
        }

        label {
            display: inline-block;
            width: 120px;
        }

        input {
            margin-right: 15px;
            margin-bottom: 10px;
            padding: 4px 6px;
        }

        hr {
            margin: 20px 0;
        }

        table {
            border-collapse: collapse;
            width: 100%;
            max-width: 950px;
        }

        th,
        td {
            border: 1px solid #ccc;
            padding: 6px;
            width: 20%;
            max-width: 200px;
        }

        #result {
            font-weight: bold;
        }