*{
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

.galeria{
	font-family: 'open sans';
}
.galeria h1{
	text-align: center;
	margin: 20px 0 15px 0;
	font-weight: 300;
}
.linea{
	border-top: 5px solid #0077C0;
	margin-bottom: 40px;
}
.contenedor-imagenes{
	display: flex;
	width: 85%;
	margin: auto;
	justify-content: space-around;
	flex-wrap: wrap;
	border-radius: 3px;
	margin-bottom: 50px;
}
.contenedor-imagenes .imagen{
	width: 32%;
	position: relative;
	height: 250px;
	margin-bottom: 5px;
	box-shadow: 0px 0px 3px 0px rgba(0,0,0,.75)
}
.imagen img{
	width: 100%;
	height: 100%;
	object-fit: cover;
}
.overlay{
	position: absolute;
	bottom: 0;
	left: 0;
	background: rgba(119,119,119, 0.581);
	width: 100%;
}
.overlay h2{
	color: #FFF;
	font-size:20px;
	text-align: center;
	font-weight: 300;
	overflow: hidden;
}
@media screen and (max-width: 1000px){
	.contenedor-imagenes{
		width: 95%;
	}
}
@media screen and (max-width: 700px){
	.contenedor-imagenes{
		width: 90%;
	}
	.contenedor-imagenes .imagen{
		width: 48%;
	}
}
@media screen and (max-width: 450px){
	h1{
		font-size: 22px;
	}
	.contenedor-imagenes{
		width: 98%;
	}
	.contenedor-imagenes .imagen{
		width: 80%;
	}
}
#scrollUp {
  bottom: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  background: url(../img/icons/up.png);
  background-size:cover; 
}