* {
  margin: 0;
  padding: 0;
}
.slider {
  overflow: hidden;
  width: 100%;
  height: 5.75rem;
  position: relative;
}
.slider > ul {
  height: auto;
  overflow: hidden;
  position: relative;
  left: 0;
  transition: left 1s;
}
.slider .slider-item {
  display: inline-block;
  height: auto;
}
.slider .slider-item > img {
  display: block;
  height: auto;
  width: 100%;
  height: 5.75rem;
}
.slider .slider-arrow {
  display: inline-block;
  color: #fff;
  font-size: 2.5rem;
  position: absolute;
  top: 50%;
  margin-top: -2.5px;
  z-index: 100;
  padding: 1rem;
  cursor: pointer;
  font-weight: bold;
}
.slider .slider-arrow:hover {
  background: rgba(0, 0, 0, 0.2);
}
.slider .slider-arrow.slider-arrow-right {
  right: 0;
}
.slider .slider-arrow.slider-arrow-left {
  left: 0;
}
.slider .slider-dots-wrap {
  z-index: 5;
  text-align: right;
  width: 100%;
  position: absolute;
  right: 0.5rem;
  bottom: 0;
}
.slider .slider-dots-wrap .slider-dot {
  display: inline-block;
  width: 0.3rem;
  height: 0.2rem;
  border: 0.15rem solid #ccc;
  margin: 0.3rem;
  cursor: pointer;
  border-radius: 50%;
  box-sizing: border-box;
}
.slider .slider-dots-wrap .slider-dot:hover {
  border: 0.15rem solid #868686;
}
.slider .slider-dots-wrap .slider-dot.slider-dot-selected {
  background: #ccc;
  border-radius: 50%;
  box-sizing: border-box;
}