body {
            display: flex;
            flex-direction: column;
            min-height: 100vh;
            margin: 0;
        }
        header, footer {
            background: #ff16f3ff;
            color: #fff;
            text-align: center;
            padding: 1em;
            border: thick double #3bfff8;        
        }
        .menu {
            background: #ff16f3ff;
            padding: 0.5em;
            display: flex;
            justify-content: center;
        }
        .menu a {
            color: #fff;
            text-decoration: none;
            padding: 0.5em 1em;
        }
        .menu a:hover {
            background: #cc00cc95;
        }
        .container {
            display: flex;
            flex: 1;
        }
        .sidebar {
            background: #ff16f3ff;
            padding: 10px;
            width: 200px;
            border: thick double #3bfff8;        
        }

        .main {
            background: #ffffffff;
            padding: 10px;
            padding-left: 10px;
            flex: 1;
        }
        .right-sidebar {
            background: rgb(255, 255, 255);
            padding: 10px;
            width: 200px;
            border: thick double #3bfff8;        
        }

        article {
            background: #fff;
            margin-bottom: 1em;
            padding: 5em;
            padding-left: 3em;
            border-radius: 5px;
            border: thick double #000000;        
        }

        h2.article-title {
            margin-top: 0;
        }