.gallery {
  position: relative;
  display: block;
  max-width: 500px;
  max-height: 300px;
  margin: auto;
  border-radius: 4px;
  overflow: hidden;
}
.gallery .slick-list {
  overflow: hidden;
}
.gallery .slick-slide {
  outline: none !important;
}

.gallery-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  font-size: 14px;
  font-family: Helvetica, sans-serif;
  line-height: 40px;
  text-align: center;
  background-color: #E6E6E6;
  z-index: 10;
  cursor: pointer;
  transition: background 0.3s ease;
}
.gallery-arrow:hover {
  background: #D0DFE6;
}
.gallery-arrow.mod-prev {
  left: 0;
  border-radius: 0 4px 4px 0;
}
.gallery-arrow.mod-next {
  right: 0;
  border-radius: 4px 0 0 4px;
}

.gallery-item {
  position: relative;
  float: left;
  vertical-align: middle;
  text-align: center;
}

.gallery-img-holder {
  display: inline-block;
  width: auto;
  height: auto;
  max-width: 500px;
  max-height: 500px;
}

.gallery-img {
  width: 100%;
  height: 100%;
}

.slick-lightbox .slick-arrow {
  z-index: 10;
}