body {
  background-image: url(../images/body_bg.png);
  background-size: cover;
}
.register_form {
  width: 400px;
  max-width: 100%;
  background: #FFFFFF;
  border-radius: 6px;
}
header {
  display: none;
}
@media screen and (max-width: 750px) {
  header {
    display: block;
  }
  header .login_register,
  header .user_info {
    display: none !important;
  }
  .table {
    margin-top: 1.5rem;
    padding: 0 0.25rem 0.5rem;
  }
  .table .logo {
    display: none;
  }
}