.preview-site-nav {
    position: sticky;
    top: 0;
    z-index: 20;
    margin: 0 auto 0.75em;
    padding: 0.6em 1em;
    border-bottom: 1px solid var(--rule, var(--accent, #888));
    background: var(--background, #fff);
    font: 0.75rem/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.preview-site-nav a {
    color: var(--secondary, #444);
    text-decoration: none;
}

.preview-site-nav a:hover,
.preview-site-nav a:focus {
    color: var(--accent, currentColor);
    text-decoration: underline;
    text-underline-offset: 0.2em;
}