.nav-masthead .nav-link + .nav-link {
    margin-left: 1rem;
}

pre {
    padding: 10px;
}

body {
    background-color: rgba(0,0,0,.0);
}

.page {
    background-color: white;
}

p img {
    display: block;
    margin-left: auto;
    margin-right: auto;
    max-width: 100%;
}