#main > div.col.s12:nth-child(1) {
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    background: url(../images/plantilla_head.jpg) no-repeat center center;
}
#content h1 {
    font-size: 50px;
}
#content h3 {
    color: #116881;
    padding-bottom: 5px;
    border-bottom: 1px solid #116881;
}
#content strong {
    font-weight: bold;
    color: #116881;
}
#content .correct > label {
    color: #76ff03;
}
#content .incorrect > label {
    color: #ff3d00;
}
#content > div:nth-child(3) > article > div:nth-child(1) > p:nth-child(1) > a{
    text-transform: capitalize;
}

@media(min-width:601px) and (max-width:992px) {
    #main > div.col.s12:nth-child(1) {
        background: url(../images/plantilla_head.jpg) no-repeat center center;
        -webkit-background-size: cover;
        -moz-background-size: cover;
        -o-background-size: cover;
        background-size: cover;
    }
}

@media(max-width:600px) {
    #main > div.col.s12 {
        min-height: 200px;
    }
    #main > div.col.s12:nth-child(1) {
        background: url(../images/plantilla_head.jpg) no-repeat center center;
        -webkit-background-size: cover;
        -moz-background-size: cover;
        -o-background-size: cover;
        background-size: cover;
    }
    #content .section:nth-child(1) > article .col.s12:nth-child(1) > div.col.s12 img,
    #content footer.page-footer .container .row img {
        display: block;
        margin: 10px auto;
        width: 200px;
    }
    #main > div.col.s12:nth-child(2) {
        padding-top: 20px;
    }
    #content footer.page-footer div.footer-copyright {
        min-height: 106px;
    }
}