body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
        }

        header {
            background-color: #ffffff;
            color: #000000;
            text-align: center;
        }

        nav {
            background-color: #3fb500;
            padding: 10px;
        }

        nav a {
            color: #ffffff;
            text-decoration: none;
            padding: 10px;
            margin-right: 10px;
            display: inline-block;
        }

        .container {
            display: flex;
            justify-content: space-between;
            max-width: 95%;
            margin: 0 auto;
            padding: 20px;
        }

        article p {
            text-align: justify;
        }

        main {
            flex: 2;
        }

        article {
            margin-bottom: 20px;
            padding: 10px 20px;
            border: 1px solid rgb(145, 145, 145);
            margin-right: 10px;
        }

        aside {
            flex: 1;
            background-color: #c9c9c9;
            padding: 10px;
        }

        footer {
            background-color: #242424;
            color: #fff;
            text-align: center;
            position: fixed;
            bottom: 0;
            width: 100%;
        }