* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #333;
}

.site-nav {
    position: fixed;
    top: 1rem;
    right: 0;
    left: 0;
    margin-bottom: 0;
}