body {
    text-align: center;
}

h1 {
    margin: 2em 0em 0em 0em;
}

h1 > img {
    display: inline-block;
    height: auto;
    max-width: 100%;
}

nav {
    box-sizing: border-box;
    margin: 3em 0em;
}

ul {
    list-style-type: none;
    margin: 0 auto;
    max-width: 250px;
    padding: 0px;
}

li {
    display: block;
    margin: 20px 0px;
}

li > a {
    display: block;
}