.slider {
  position: relative;
  width: 100%;
  height: 100%;
  box-shadow: 3px 3px 10px rgba(0, 0, 0, 0.2);
}

.slider_wrapper {
  overflow: hidden;
  position: relative;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.slides {
  display: flex;
  position: relative;
  top: 0;
  width: 10000px;
  height: 100%;
  z-index: 1;
}

.slides.shifting {
  transition: left 0.2s ease-out;
}

.slide {
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  height: 100%;
}

.slide_nav{
  position: absolute;
  left: 0;bottom: 0;
  width: 100%;
  display: flex;
  width: 100%;
  height: 4px;
  z-index: 1;
  
}
.slide_nav>span{
  width: 100%;
  height: 100%;
  position: relative;
  background: red;
  opacity: 0;
  transition: opacity .3s;
}
.slide_nav>span.active{
  opacity: 1;
}
.slide_num_nav{
  position: absolute;
  right: 5px;
  top: 5px;
  z-index: 1;
}

.slider_control_next, .slider_control_prev{
  position: absolute;
  right: 0;top: 50%;
  transform: translate(0, -50%);
  width: 20px;
  height: 30px;
  cursor: pointer;
  z-index: 2;
}
.slider_control_prev{
  left: 0;
  right: unset;
}
.slider_control_next::before, .slider_control_next::after, .slider_control_prev::before, .slider_control_prev::after{
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translate(0, -50%) rotate(45deg);
  height: 1px;
  width: 100%;
  transform-origin: right;
  background: rgba(0, 0, 0, 0.3);
  transition: .2s;
}
.slider_control_next::after{
  transform: translate(0, -50%) rotate(-45deg);
}

.slider_control_prev::before, .slider_control_prev::after{
  right: unset;
  left: 0;
  transform: translate(0, -50%) rotate(45deg);
  transform-origin: left;
}
.slider_control_prev::after{
  transform: translate(0, -50%) rotate(-45deg);
}

.slider_control_next:hover::before, .slider_control_next:hover::after, .slider_control_prev:hover::before, .slider_control_prev:hover::after{
  background: rgba(0, 0, 0, .7);
}