.slick-slide img{
    width:350px;margin:auto;
  }
@media only screen and (max-width: 950px) {
  .slick-slide img{
    width:90%;margin:auto;
  }
}
@media only screen and (max-width: 600px) {
  .slick-slide img{
    width:80%;
    margin:auto;
  }
}
@media only screen and (max-width: 520px) {
  .slick-slide img{
    width:70%;
    margin:auto;
  }
}