.block--logo__item{
    width: 30%;
    margin: 0 auto 15px;
}
.block--logo__item a{
  display: block;
  line-height: 0;
  transition: .4s;
}

@media screen and (min-width: 961px) {
  .block--logo__item a:hover{
    opacity: 0.6;
  }
}

@media screen and (max-width: 960px) {
  .block--logo__item{
    width: min(22%, 70px);
  }
}