.testimonial-cluster {
  --testimonial-cluster-gutter: 1.5rem;
  position: relative;
}

.testimonial-cluster__sizer,
.testimonial-cluster__item {
  width: 100%;
}

.testimonial-cluster__gutter {
  width: var(--testimonial-cluster-gutter);
}

.testimonial-cluster__item {
  box-sizing: border-box;
  margin-bottom: 20px;
  min-width: 0;
  overflow-wrap: anywhere;
}

@media (min-width: 768px) {
  .testimonial-cluster__sizer,
  .testimonial-cluster__item {
    width: calc((100% - var(--testimonial-cluster-gutter)) / 2);
  }
}

@media (min-width: 1024px) {
  .testimonial-cluster__sizer,
  .testimonial-cluster__item {
    width: calc((100% - (2 * var(--testimonial-cluster-gutter))) / 3);
  }
}