body {
  padding: 30;
  margin: 30;
  background: #ffffff;
}
.header {
  background-image: url('dev-background.svg');
  background-size: cover;
  background-position: center;
  position: relative;
}
.overlay {
	position: absolute;
	min-height: 100%;
	min-width: 100%;
	left: 0;
	top: 0;
	background: rgba(0, 0, 0, 0.6);
}
/*--- navigation bar ---*/
.navbar {
  background:#644673;
}
.nav-link,
.navbar-brand {
  color: #fff;
  cursor: pointer;
}
.nav-link {
  margin-right: 1em !important;
}
.nav-link:hover {
  color: #000;
}
.navbar-collapse {
  justify-content: flex-end;
}
.description {
  left: 50%;
  position: absolute;
  top: 45%;
  transform: translate(-50%, -55%);
  text-align: center;
}
.description h1 {
  color: #33E5A5;
}
.description p {
  color: #fff;
  font-size: 1.3rem;
  line-height: 1.5;
}
.description button {
  border:1px solid #fff;
  background:#33E5A5;
  border-radius: 0;
  opacity: 80%;
  color:#fff;
}
.description button:hover {
  border:1px solid #000;
  background:#644673;
  color:#fff;
}