/* responsive */
@media only screen and (max-width: 1320px){
  .nn-description {
    margin: 2em 2.5em;
  }
}
@media only screen and (max-width: 990px){
  .nn-grid-wide-center{
    margin: 0 15px;
  }
  .nn-description {
    margin: 2em 0em;
  }
}
@media only screen and (max-width: 767px){
  .nn-grid-wide li>div:last-child {
    margin-top: 1.5em;
  }
}
@media only screen and (max-width: 660px){
  .nn-grid-wide-center{
    margin: 0 15px;
  }
}