.reviews-slider {
  max-width: 800px;
  margin: auto;
  padding: 40px;
  background: #f5f5f5;
  border-radius: 20px;
  text-align: center;
  position: relative;
}

.review { display: none; }
.review.active { display: block; }

.stars {
  color: #f4b400;
  font-size: 22px;
}

.author {
  margin-top: 15px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.avatar {
  width: 40px;
  height: 40px;
  background: teal;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 10px;
}

.nav {
  position: absolute;
  top: 50%;
  cursor: pointer;
}

.prev { left: 10px; }
.next { right: 10px; }