.up10 {margin-top: 10px;}
.up20 {margin-top: 20px;}
.up30 {margin-top: 30px;}
.up40 {margin-top: 40px;}
.up50 {margin-top: 50px;}
.up60 {margin-top: 60px;}
.up70 {margin-top: 70px;}
.up80 {margin-top: 80px;}
.up90 {margin-top: 90px;}
.up100 {margin-top: 100px;}

.darkseccion1 {
	background-image: url('../img/background_bk1.jpg');
	background-size: cover;
	background-repeat: no-repeat;
	background-position: center;
}