body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f8f8f8;

}

header {
    background-color: #333;
    color: #fff;
    padding: 10px;
    text-align: center;
	height: 200px;
}

nav ul {
    list-style-type: none;
    margin: 0;
    text-align: center;
    float: none;
    transform: translate(-50%, -50%);
    position: absolute;
    top: 35%;
    left: 50%;
}

nav ul li {
	border: 1px solid #ced4da;
	border-radius: 5px;
    margin: 10px;
	width: 400px;
}

nav ul li a {
    display: block;
    color: #333;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 5px;
    background-color: #fff;
    transition: background-color 0.3s ease;
}

nav ul li a:hover {
    background-color: #ddd;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 10px 0;
    position: fixed;
    width: 100%;
    bottom: 0;
}