.md-header {
    color: hsl(0, 0%, 60%);
    background-color: hsl(0, 0%, 98%);
}

main.md-main {
    background-color: hsl(212, 90%, 90%);
}

.md-main__inner, .md-nav__list, .md-nav__item--nested {
    background-color: hsl(0, 0%, 98%);
}

.md-sidebar {
    padding: 1.2rem 0.4rem 0.4rem 0.4rem;
}