@media screen and (max-width: 992px) {
  li.nav-item {
    text-align: center;
  }
}
@media screen and (max-width: 534px) {
  .section-8 ul li{
    text-align: center;
    display: block;
  }
}
@media screen and (max-width: 490px) {
  .Partners-section ul li {
    text-align: center;
    display: block;
  }
}