.content form {
  width: 100%;
}

.content input, .content select, .content label {
  width: 90%;
  font-size: 15rem;
  padding: 5rem;
  margin: 5rem auto;
}

label {
  display: block;
  background: #3f51b5;
  color:white;
  cursor: pointer;
  font-size: 20rem !important;
}

label:hover {
  background: red;
  color:white;

}

.reg_btn {
  display: none;
}

#select_ctg {
  color:red;
}