body {
  background: url('../images/fondo.jpg') no-repeat center center fixed;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  background-size: cover;
  -o-background-size: cover;
}


.btn-custom {
    color: #fff;
    background-color: #337AB7;
    border-color: #337AB7;
}

.navbar-muni {
    background-color: #337AB7;
    color: #FFFFFF;
    padding: 15px;
}

.titulo {
  font-size: 20px;
  color: #31708f;
}

#overlay {
  position: fixed; 
  display: none; 
  width: 100%; 
  height: 100%; 
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0,0,0,0.8); 
  z-index: 2; 
}

#text{
  position: absolute;
  top: 50%;
  left: 50%;
  font-size: 40px;
  color: white;
  transform: translate(-50%,-50%);
  -ms-transform: translate(-50%,-50%);
}