html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    line-height: 1.5em;
    color: #5d2937;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

#container {
    width: 100%;
    max-width: 800px;
    padding: 50px;
    background-color: aliceblue;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    text-align: center;
    display: flex;
    align-items: center;
    flex-direction: column;
}

a {
    text-decoration: none;
}

nav ul {
    display: flex;
    list-style-type: none;
    padding: 0;
}

nav ul li {
    flex: 1;
}

nav ul li a {
    font-weight: bold;
    display: block;
    width: 100%;
    text-align: center;
    padding: 20px;
    background-color:#5d2937;
    color:whitesmoke;
}