#main {
  width: 90vw;
  height: 90vh;
  margin: 0 auto;
  margin-top: 5vh;
  text-align: center;
  background-color: #eee;
  border-radius: 5vh;
}

.logo {
  height: 50vh;
  padding-bottom: 5vh;
  -webkit-filter: drop-shadow(1px 1px 1px rgba(0, 0, 0, 0.39));
}

.message {
  font-family: Arial;
  padding-bottom: 5vh;
  color: #555;
  font-size: 1em;
}

.disclaimer {
  font-family: Arial;
  padding-top: 5vh;
  color: #555;
  font-size: 0.8em;
}

.copyright {
  font-family: Arial;
  color: #555;
  font-size: 0.8em;
}

.btn {
  background: #3498db;
  background-image: -webkit-linear-gradient(top, #3498db, #2980b9);
  background-image: -moz-linear-gradient(top, #3498db, #2980b9);
  background-image: -ms-linear-gradient(top, #3498db, #2980b9);
  background-image: -o-linear-gradient(top, #3498db, #2980b9);
  background-image: linear-gradient(to bottom, #3498db, #2980b9);
  -webkit-border-radius: 11;
  -moz-border-radius: 11;
  border-radius: 11px;
  font-family: Arial;
  color: #ffffff;
  font-size: 1.7em;
  padding: 10px 20px 10px 20px;
  text-decoration: none;
}

.btn:hover {
  background: #3cb0fd;
  background-image: -webkit-linear-gradient(top, #3cb0fd, #3498db);
  background-image: -moz-linear-gradient(top, #3cb0fd, #3498db);
  background-image: -ms-linear-gradient(top, #3cb0fd, #3498db);
  background-image: -o-linear-gradient(top, #3cb0fd, #3498db);
  background-image: linear-gradient(to bottom, #3cb0fd, #3498db);
  text-decoration: none;
}