nav {
    height: 47;
    line-height: 47;
}

nav i,
nav [class^="mdi-"],
nav [class*="mdi-"],
nav i.material-icons {
    height: 47;
    line-height: 47;
}

nav .button-collapse i {
    height: 47;
    line-height: 47;
}

nav .brand-logo {
    font-size: 1.6rem;
}

@media only screen and (min-width: 601px) {

    nav,
    nav .nav-wrapper i,
    nav a.button-collapse,
    nav a.button-collapse i {
        height: 47;
        line-height: 47;
    }
}

.brand-logo {
    max-height: 47px;
}