.timeline-block__body {
  position: absolute;
  top: 0;
  left: 0;
  width: 1%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
}

.timeline-block__body.active,
.timeline__body__list.loading .timeline-block:first-child .timeline-block__body {
  opacity: 1;
  width: 100%;
  visibility: visible;
  position: relative;
  transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
}