.container-portada{
	position: relative;
	margin-top: 90px; /*auto*/
	width: 100%;
	height: 400px;
	background: url(../img/construccion.jpg);
	/*background-size: 200%;*/
	animation: movimiento 20s infinite linear alternate;
}
@keyframes movimiento{ 
	from{
		background-position: bottom left;
	}
	to{
		background-position: top right;
	}
}

.capa-gradiente{
	width: 100%;
	height: 400px;
	position: absolute;	/*absolute*/
	background: linear-gradient(left, black, #0672d0);
	background: -webkit-linear-gradient(left, black, #0672d0);
	background: -moz-linear-gradient(left, black, #0672d0);
	opacity: 0.5;
}

.contenedor-detalles{
	width: 100%;
	max-width:1200px;
	position: relative;
	padding: 10px;
	top:25%;
	left:10px;
	color: white;
}

.detalles h1{
	font-size: 36px;
	color: #f7ce36;
	font-weight: bold; /*100*/
}

.detalles p{
	margin-top: 10px;
	font-size: 18px;
	color: #fff;
}