*, ::before, ::after {
    box-sizing: border-box;
}

html {
    height: 100%;
}

body {
    display: flex;
    flex-direction: column;
    height: 100%;
    margin: 0;
}

.navbar-brand {
    font-size: 1rem;
}

a {
    text-decoration :none;
}

.nav-link > img {
    height: 20px;
}

.navbar-nav:last-child ul {
    background-color: transparent;
    border: none;
    min-width: 36px;
}

.dropdown-menu img {
    width: 36px;
}