html {
            background-color: #f0f0f0;
            height: 100%;
        }

        body {
            font-family: 'Segoe UI', sans-serif;
            font-size: 16px;
            color: rgb(80, 80, 80);
            min-height: 100%;
            height: auto;
            width: 80%;
            min-width: 640px;
            max-width: 1024px;
            margin: 0px auto; 
            padding: 5px 20px;
            background-color: #eee;
            box-shadow: rgba(0,0,0,.5) 0px 0px 50px;
        }

        p {
            padding-right: 10px;
            padding-left: 10px;
        }

        h1 {
            padding-right: 10px;
            padding-left: 10px;
        }
        
        article {
            border-radius: 15px;
            box-shadow: rgba(0,0,0,.25) 5px 5px 5px;
            background-color: rgb(253, 253, 253);
            display: inline-block;
            margin: 2px;
            border: thin solid rgb(236, 236, 236);
        }

        header, nav, article, footer {
            margin-bottom: 10px;
            padding: 10px;
        }
        
        header, nav {
            text-align: center;
        }

        a {
            white-space: nowrap;
        }

        nav {
            padding: 0px;
            background-color: rgb(122, 155, 104);
        }

        nav a {
            color: white;
            display: inline-block;
            text-decoration: none;
            text-transform: uppercase;
            margin: 0px 20px;
            padding: 15px 20px;
        }

        nav a:hover {
            background-color: rgb(114, 145, 97);
        }

        footer {
            background-color: rgb(122, 155, 104);
            font-size: 14px;
            color: white;
            width: 98%;
        }

        h1 {
            font-size: 20px;
        }

        h2 {
            font-size: 18px;
        }

        .img {
            display: block;
            margin: 0px auto;
        }

        .paragraph {
            text-align: center;
        }