.mypattern .slick-slide:not(.slick-center) {
  -webkit-filter: opacity(70%);
  -moz-filter: opacity(70%);
  -o-filter: opacity(70%);
  -ms-filter: opacity(70%);
  filter: opacity(70%);
  transition: 0.2s linear;
}
ul {
  list-style-type: none;
}