style (2).css

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

h1{
  color: whitesmoke;
  text-transform: uppercase;
  margin-left: 5rem;
}

.buffer{
  height: 10rem;
}
.btn-primary{
  text-transform: uppercase;
  border-radius: 3rem;
  background-color: orange;
  border-color: orange;
}

.line{
  background-color: orange;
  height: 0.1rem;
  max-width: 65px;
}

.btn-primary:hover{
  background-color: darkorange;
  border-color: darkorange;
  font-style: italic;
  border-width: 0.2rem;
}