.register{ padding: 70px 200px; margin: 0 -15px; background: #fff; box-shadow: 0 5px 10px rgba(0,0,0,.3);}

@media (max-width: 960px) {
  .register{ padding: 50px 30px;}
}
@media (max-width: 767px) {
  .register{ padding: 30px 20px;}
}