#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;
}
@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;
	}
}

input.correct {
    background-color: #20B828;
    border-radius: 7px;
    color: #fff;
}

input.incorrect {
    background-color: #ff3d00;
    border-radius: 7px;
    color: #fff;
}

input {
    margin-left: 20px;
}