.icon-chevron-left{
	display: block;
	width: 30px;
	height: 30px;
	background: url("/20230901002123oe_/https://www.ioa.cuhk.edu.hk/nutcrackers/images/slide_arrow_left.png") no-repeat;
	background-size: cover;
}

.icon-chevron-right{
	display: block;
	width: 30px;
	height: 30px;
	background: url("/20230901002123oe_/https://www.ioa.cuhk.edu.hk/nutcrackers/images/slide_arrow_right.png") no-repeat;
	background-size: cover;
}

.nav{
	width: 60px;
	height: 30px;
	margin: 0 auto;
}

#slides,
#slides2,
#slides3 {
  display: none;
  margin-bottom:50px;
}

.slidesjs-navigation {
  margin-top:3px;
}

.slidesjs-previous {
  margin-right: 5px;
  float: right;
}

.slidesjs-next {
  margin-right: 5px;
  float: right;
}

.slidesjs-pagination {
  margin: 15px 20px 0 0;
  float: right;
  list-style: none;
}

.slidesjs-pagination li {
  float: left;
  margin: 0 3px;
}

.slidesjs-pagination li a {
  display: block;
  width: 13px;
  height: 0;
  padding-top: 13px;
  background-image: url(/20230901002123oe_/https://www.ioa.cuhk.edu.hk/nutcrackers/images/pagination.png);
  background-position: 0 0;
  float: left;
  overflow: hidden;
}

.slidesjs-pagination li a.active,
.slidesjs-pagination li a:hover.active {
  background-position: 0 -13px
}

.slidesjs-pagination li a:hover {
  background-position: 0 -26px
}

.navbar {
  overflow: hidden
}

<!-- End SlidesJS Optional-->

<!-- SlidesJS Required: These styles are required if you'd like a responsive slideshow -->

#slides {
  display: none
}

.photo-container {
  margin: 0 auto
}

/* For tablets & smart phones */
@media (max-width: 767px) {
 
  .photo-container {
	width: auto
  }
}

/* For smartphones */
@media (max-width: 480px) {
  .photo-container {
	width: auto
  }
	
	.slidesjs-pagination {
	  display:none;
	}

	#slides,
	#slides2,
	#slides3 {
	  display: none;
	  margin-bottom:20px;
	}
}

/* For smaller displays like laptops */
@media (min-width: 768px) and (max-width: 979px) {
  .photo-container {
	width: auto;
  }
}

/* For larger displays */
@media (min-width: 1200px) {
  .photo-container {
	width: auto;
  }
}