body, html {
            margin: 0;
            padding: 0;
            font-family: sans-serif;
            height: 100%;
        }

        .nav {
            background-color: rgb(0, 100, 0); 
            width: 100%;
            position: fixed;
            top: 0;
            left: 0;
            z-index: 10;
            height: 80px;
            display: flex;
            align-items: center;
        }

        .nav ul {
            list-style-type: none;
            margin: 0;
            padding: 0;
            display: flex;
            justify-content: center;
            width: 100%;
        }

        .nav > ul > li {
            position: relative;
        }

        .nav ul li a {
            display: block;
            color: white;
            text-align: center;
            padding: 25px 20px; 
            text-decoration: none;
            transition: background-color 0.3s, color 0.3s;
            font-size: 16px;
        }

        .nav ul li:hover > a {
            background-color: #556b2f;
            color: yellow;
        }

        .hover {
            display: none;
            position: absolute;
            background-color: white; 
            min-width: 220px;
            box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
            z-index: 1;
            top: 100%; 
        }

        .hover ul {
            list-style-type: none;
            padding: 0;
            margin: 0;
            display: block;
        }

        .nav ul li:hover .hover {
            display: block;
        }

        .hover ul li a {
            color: black; 
            padding: 12px 16px;
            text-decoration: none;
            display: block;
            text-align: left;
            border-bottom: 1px solid #eee; 
        }

        .hover ul li:last-child a {
            border-bottom: none;
        }

        .hover ul li a:hover {
            background-color:#556b2f; 
            color: yellow; 
        }

        .content {
            margin-top: 80px; 
            width: 100%;
            height: calc(100vh - 80px); 
        }

        .content img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            filter: brightness(0.7);
        }