.timeline {
  padding: 50px 20px;
  margin: 0 auto;
  max-width: 1000px;
  color: #000;
}
.timeline ol {
  position: relative;
  list-style: none;
}
.timeline ol::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0px;
  width: 3px;
  height: 100%;
  background: #ff0000;
}
.timeline ol li .item-inner {
  padding: 20px 180px;
  margin-bottom: 8vh;
}
.timeline ol li .time-wrapper {
  position: relative;
  font-size: 4.5rem;
  font-weight: bold;
  line-height: 0.9;
}
.timeline ol li .time-wrapper::before,
.timeline ol li .time-wrapper::after {
  content: "";
  position: absolute;
  background: #000;
}
.timeline ol li .time-wrapper::before {
  top: 50%;
  left: -210px;
  transform: translateY(-50%);
  width: 0;
  height: 3px;
  transition: width 0.8s linear;
}
.timeline ol li .time-wrapper::after {
  top: calc(50% - 8px);
  left: -90px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  transform: scale(0);
  transform-origin: left center;
  transition: all 0.4s linear;
}
.timeline ol li time,
.timeline ol li .details>* {
  opacity: 0;
  transition: 0.5s;
}
.timeline ol li time {
  display: inline-block;
  transform: translateY(-30px);
}
.timeline ol li .details>* {
  transform: translateY(30px);
}
.timeline ol li .details h3 {
  font-size: 2rem;
  line-height: 1;
  margin: 15px 0;
}
.timeline ol li.in-view .time-wrapper::before {
  width: 120px;
}
.timeline ol li.in-view .time-wrapper::after {
  transition-delay: 0.5s;
  transform: scale(1.5);
}
.timeline ol li.in-view time,
.timeline ol li.in-view .details>* {
  opacity: 1;
  transform: none;
}
.timeline ol li.in-view time {
  transition-delay: 1.0s;
}
.timeline ol li.in-view .details h3 {
  transition-delay: 1.2s;
}
.timeline ol li.in-view .details p {
  transition-delay: 1.3s;
}
@media (max-width: 700px) {
  .timeline ol li .item-inner {
    padding: 10px;
  }
  .timeline ol li .time-wrapper::before {
    display: none;
  }
  .timeline ol li .time-wrapper::after {
    left: -45px;
    transform-origin: center;
  }
  .timeline ol li.in-view .time-wrapper::after {
    transition-delay: 0s;
  }
  .timeline ol li.in-view time {
    transition-delay: 0.5s;
  }
  .timeline ol li.in-view .details h3 {
    transition-delay: 0.7s;
    font-size: 26px;
  }
  .timeline ol li.in-view .details p {
    transition-delay: 0.9s;
  }
}