body,
html {
  width: 100%;
  height: 100%;
  font-family: "Montserrat", sans-serif;
  background: url(Images/laptop.jpg) no-repeat center center fixed;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

.introduction {
  font-size: 3rem;
  color: #a9a9ad;
}

.buffer {
  height: 30rem;
}

.btn {
  font-weight: 700;
  border-radius: 300px;
  text-transform: uppercase;
  border-color: #636370;
}

.btn-primary {
  background-color: #636370;
}

.btn-primary:hover {
  background-color: #99999c;
  border-color: #99999c;
  border: 8px;
}

.btn-xl {
  padding: 1rem 2rem;
}