.itc-slider {
  position: relative;
}

.itc-slider__wrapper {
  overflow: hidden;
}

.itc-slider__items {
  display: flex;
  transition: transform 0.5s ease;
  will-change: transform;
}

.itc-slider__transition-none {
  transition: none;
}

.itc-slider__item {
  flex: 0 0 100%;
  max-width: 100%;
  user-select: none;
  will-change: transform;
}

/* кнопки */
.itc-slider__btn {
  position: absolute;
  top: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  color: #fff;
  text-align: center;
  background: rgb(0 0 0 / 20%);
  border: none;
  transform: translateY(-50%);
  cursor: pointer;
}

.itc-slider__btn_hide {
  display: none;
}

.itc-slider__btn_prev {
  left: 4px;
}

.itc-slider__btn_next {
  right: 4px;
}

.itc-slider__btn:hover,
.itc-slider__btn:focus {
  color: #fff;
  text-decoration: none;
  background: rgb(0 0 0 / 30%);
  outline: 0;
}

.itc-slider__btn::before {
  content: "";
  display: inline-block;
  width: 14px;
  height: 20px;
  background: transparent no-repeat center center;
  background-size: 100% 100%;
		
}

/*Навигация кнопки */
.itc-slider__btn_prev::before {
  background-image: url(https://m4dv.edusite.ru/scin/slayider_istoriya_foto/images/arrows1.png);
}

.itc-slider__btn_next::before {
  background-image: url(https://m4dv.edusite.ru/scin/slayider_istoriya_foto/images/arrows2.png);
}



/*  нижняя навигация */
.itc-slider__indicators {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 15;
  display: flex;
  justify-content: center;
  margin: 0 15%;
  padding-left: 0;
  list-style: none;
}

.itc-slider__indicator {
  flex: 0 1 auto;
  box-sizing: content-box;
  width: 30px;
  height: 5px;
  margin-right: 3px;
  margin-left: 3px;
  text-indent: -999px;
  background-color: rgb(255 255 255 / 50%);
  background-clip: padding-box;
  border-top: 15px solid transparent;
  border-bottom: 15px solid transparent;
  cursor: pointer;
}

.itc-slider__indicator_active {
  background-color: rgb(255 255 255 / 90%);
}