@media only screen and (max-width: 1765px) {
  #about_erc {
    background-position: top right -300px;
  }
}

@media only screen and (max-width: 1565px) {
  #about_erc {
    background-position: top right -350px;;
  }
}

@media only screen and (max-width: 1399px) {
  #about_erc {
    background-position: top right -350px;
  }
}

@media only screen and (max-width: 1360px) {
  #about_erc {
    background-position: top right -300px;
  }
}

@media only screen and (max-width: 1335px) {
  #about_erc {
    background: none;
  }

  #about_erc .col-md-6 {
    margin: 1rem auto !important;
  }

  #main_form {
    margin-top: 1.5rem !important;
  }
}