body {
    font-family: Arial, Helvetica, sans-serif;
    max-width: 1000px;
    margin: 0 auto;
    padding: 25px;
}

footer {
    margin-top: 100px;
}

.page-header {
    text-align: center;
}

.page-body {
    margin: 0 auto;
    width: 100%;
    max-width: 800px;
}

.page-body figure {
    text-align: center;
}

.page-body img {
    max-width: 500px;
    width: 100%;
    height: auto;
}

.site-title {
    font-size: 25px;
}

nav {
    margin: 10px 0;
}

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

nav li {
    margin-right: 10px;
}