ul.sponsors-list{
  width: 100%;
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}
ul.sponsors-list li{
  width: calc((100% / 6) - 10px);
  margin: 5px;
  padding: 10px;
}
ul.sponsors-list li a,
ul.sponsors-list li div{
  width: 100%;
  display: flex;
  align-items:center;
  justify-content:center;
  overflow: hidden;
  height:100%;
}
ul.sponsors-list li a img,
ul.sponsors-list li div img{
  width: 100%;
  height: 100%;
  object-fit: contain;
}
@media screen and (max-width: 1000px){
  ul.sponsors-list li{
    width: calc((100% / 5) - 10px);
  }
}
@media screen and (max-width: 800px){
  ul.sponsors-list li{
    width: calc((100% / 4) - 10px);
  }
}
@media screen and (max-width: 600px){
  ul.sponsors-list li{
    width: calc((100% / 3) - 10px);
  }
}
@media screen and (max-width: 400px){
  ul.sponsors-list li{
    width: calc((100% / 2) - 10px);
  }
}