html {
  background: url("../img/background.jpg") no-repeat center center fixed;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

.btn-main {
  background-color: #108494;
  color: white;
}

.text-main {
  color: #108494;
}