:root {
  --z-index-review: 1;
  --font: "-apple-system", BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
 
.review-block {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}
.review-btn {
  display: none;
}
.review-btn-label {
  display: inline-block;
  height: 10px;
  width: 10px;
  border-radius: 50%;
  background-color: #ccc;
  transition: all .3s;
}
.reviews {
  position: relative;
  border-radius: 10px;
  min-height: 250px;
}
#review-1:checked ~ .reviews .review-1,
#review-2:checked ~ .reviews .review-2,
#review-3:checked ~ .reviews .review-3 {
  z-index: var(--z-index-review);
  opacity: 1;
}
#review-1:checked ~ .review-btn-label-1,
#review-2:checked ~ .review-btn-label-2,
#review-3:checked ~ .review-btn-label-3 {
  background-color: #aaa;
}
.review {
  position: absolute;
  min-height: 250px;
  background-color: white;
  padding: 2em;
  text-align: left;
  border-radius: 10px;
  opacity: 0;
  transition: all .3s;
  box-shadow: 0 5px 20px rgba(0,0,0,.2);
}
.review__quote::before,
.review__quote::after {
  content: '"';
}
.review__name {
  font-weight: bold;
}
.review__logo {
  height: 75px;
  width: 75px;
  border: 1px solid #333;
  border-radius: 50%;
  position: absolute;
  right: 2em;
  bottom: 1.5em;
}