.parallax {
  background-size:cover;
  background-position:center;
  background-attachment:fixed;
  position:relative;
}

.parallax-background {
  width:0px;
  height:auto;
  display:none;
  filter:brightness(50%);
}

.parallax-background, .parallax-placeholder {
  filter:brightness(50%);
}

.parallax-placeholder {
  position:absolute;
  z-index:-200;
  top:0px;
  left:0px;
  width:100%;
  height:100%;
  background-size:cover;
  background-position:center;
  background-attachment:fixed;
}

.parallax-content {
  min-height:70vh;
  color:white;
  padding:2em 1rem;
}

.parallax-content p {
  font-size:1.5em;
  text-align:center;
}

.parallax-content .btn {
  width:100px;
  /*margin:auto;*/
}

.parallax-content h1 {
  font-family:arial black;
  font-size:50px;
  color:white;
  margin:0px;
  text-align:center;
  display:table-cell;
  vertical-align:middle;
}