.wy-side-nav-search {
    background-color: #3679ba;
}

.wy-side-nav-search > a.icon img.logo {
    width: 60px;
}

img.logo {
    max-width: 500px;
    height: auto;
    margin-bottom: 2rem;
}

a.image-reference img {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}