header {
  background-color: #e3e3e3;
}

.display-4 {
  font-size: 24px;
  text-transform: uppercase;
  font-weight: bold !important;
}

.btn {
  text-transform: uppercase;
  font-weight: bold !important;
  border-radius: 40px !important;
  margin-left: 15px !important;
}

.btn-block {
  width: 150px !important;
  margin-left: auto;
  margin-right: auto;
}

.btn-group-lg>.btn, .btn-lg {
  border-radius: 40px !important;
}

.btn-primary {
  color: #000000 !important;
  background-color: #ffffff !important;
  border: 2px solid #000000 !important;
}