.slide-wrapper {
  width: 95%;
  height: 400px;
  position: relative;
  overflow: hidden;
  margin: 0 auto;
}

.slide {
  width: 300%;
  height: 100%;
  display: flex;
  transition: all 0.3s;
}
.slide div {
  width: 33.33%;
  height: 100%;
  font-size: 16px;
  display: flex;
  text-align: center;
  justify-content: center;
  align-items: center;
}
.slide1 {
  transform: translateX(0);
}
.slide2 {
  transform: translateX(-33.33%);
}
.slide3 {
  transform: translateX(-66.66%);
}
.slide div:nth-of-type(1){ /* 背景色 */
  background-color: #E1F3FC;
}
.slide div:nth-of-type(2){ /* 背景色 */
  background-color: #E1F3FC;
}
.slide div:nth-of-type(3){ /* 背景色 */
  background-color: #E1F3FC;
}
/* ↓ 左右ボタン */
.next {
  position: absolute;
  width: 15px;
  height: 15px;
  right: 10px;
  bottom: 50%;
  z-index: 10;
  cursor: pointer;
  border-top: solid 3px #ffffff;
  border-right: solid 3px #ffffff;
  -webkit-transform: rotate(45deg) translateY(50%);
  transform: rotate(45deg) translateY(50%);
}
.prev {
  position: absolute;
  width: 15px;
  height: 15px;
  left: 25px;
  bottom: 50%;
  z-index: 10;
  cursor: pointer;
  border-top: solid 3px #ffffff;
  border-right: solid 3px #ffffff;
  -webkit-transform: rotate(-135deg) translateY(-50%);
  transform: rotate(-135deg) translateY(-50%);
}
/* ↓ インジケーター */
.indicator {
  width: 100%;
  position: absolute;
  bottom: 20px;
  display: flex;
  column-gap: 18px;
  z-index: 10;
  justify-content: center;
  align-items: center;
}
.indicator li {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  list-style: none;
  background-color: #fff;
  border: 2px #000000 solid;
  cursor: pointer;
}
.indicator li:first-of-type {
  background-color: #000000;
}