.marca-index { border: solid 1px #f1f1f1; border-radius: 5px; height: 100px; line-height: 100px; }
.marca-index img { vertical-align: middle; -webkit-filter: grayscale(1); }
.marca-index:hover img { -webkit-filter: grayscale(0); }
.box-index { border-top: 15px solid #f5812e; background: #f8f8f8; padding: 10px; border-radius: 10px; }
.box-index figure { height: 150px; line-height: 150px; }
.box-index figure img { vertical-align: middle; }
.box-index:hover { box-shadow: 0 0 40px rgba(0, 0, 0, .5); }
.topo { height: 600px; }
@media (max-width:720px) {
	.bg-sobre { display: none; }
	.topo { height: auto; }
	.head_1{font-size: 30px;}
}