body {
  min-height: 2000px;
}
.jumbotron {
  padding-top: 5rem;
  background-color: #161b22;
}

.display-4 {
  color: #f5f5f5;
}
.lead {
  color: #f5f5f5;
}

#about {
  color: #f5f5f5;
}

#certificate {
  color: #f5f5f5;
}

#contact {
  color: #f5f5f5;
  padding-bottom: 3rem;
}
section {
  padding-top: 5rem;
}
#transkrip {
  color: #f5f5f5;
}