.wy-side-nav-search > a img.logo {
    max-width: 128px;
    max-height: 128px;
}

.github-link {
    text-align: center;
    margin: 8px 0 4px;
}

.github-button {
    display: inline-block;
    padding: 6px 16px;
    background: #24292e;
    color: #fff !important;
    border-radius: 4px;
    text-decoration: none !important;
    font-size: .85em;
    font-weight: bold;
    border: none;
}

.github-button:hover {
    background: #586069;
    color: #fff !important;
}