body {
    font-family: 'Dosis', sans-serif;
}

h1,
span {
    color: rgb(63, 72, 76);
}

header {
    margin-top: 10px;
}

header .logo {
    max-width: 80px;
}

header h1 {
    margin: -0.5em 0 0 0;
    font-size: 1.6em;
}

main {
    margin: 20px 0;
}

footer {
    text-align: center;
}

footer a img {
    max-width: 120px;
    margin: 0px 10px 10px 0px;
}

@media only screen and (min-width: 64.063em) {
    header h1 {
        margin: -0.95em 0 0 0;
        font-size: 3em;
    }
    header span {
        font-size: 2em;
    }
    header .voltar {}
    header .logo {
        max-width: 150px;
    }
    footer a {
        position: fixed;
        bottom: 10px;
        right: 15px;
        margin: 0;
        max-width: 150px;
    }
}