Vertical Timeline

<div class="nuda-tl-vertical">
  <div class="nuda-tl-vertical__item nuda-tl-vertical__item--done">
    <div class="nuda-tl-vertical__dot"></div>
    <div class="nuda-tl-vertical__body">
      <span class="nuda-tl-vertical__date">Jan 2023</span>
      <p class="nuda-tl-vertical__title">Project kickoff</p>
    </div>
  </div>
  <div class="nuda-tl-vertical__item nuda-tl-vertical__item--done">
    <div class="nuda-tl-vertical__dot"></div>
    <div class="nuda-tl-vertical__body">
      <span class="nuda-tl-vertical__date">Mar 2023</span>
      <p class="nuda-tl-vertical__title">Beta released</p>
    </div>
  </div>
  <div class="nuda-tl-vertical__item nuda-tl-vertical__item--active">
    <div class="nuda-tl-vertical__dot"></div>
    <div class="nuda-tl-vertical__body">
      <span class="nuda-tl-vertical__date">Now</span>
      <p class="nuda-tl-vertical__title">Public launch</p>
    </div>
  </div>
  <div class="nuda-tl-vertical__item">
    <div class="nuda-tl-vertical__dot"></div>
    <div class="nuda-tl-vertical__body">
      <span class="nuda-tl-vertical__date">Q4 2024</span>
      <p class="nuda-tl-vertical__title">v2.0 roadmap</p>
    </div>
  </div>
</div>

.nuda-tl-vertical {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 8px 0;
  width: 220px;
}

.nuda-tl-vertical__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  position: relative;
  padding-bottom: 20px;
}

.nuda-tl-vertical__item:last-child {
  padding-bottom: 0;
}

.nuda-tl-vertical__item::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 16px;
  bottom: 0;
  width: 2px;
  background: rgba(255,255,255,.08);
}

.nuda-tl-vertical__item:last-child::before {
  display: none;
}

.nuda-tl-vertical__dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #1a1a1a;
  border: 2px solid rgba(255,255,255,.15);
  flex-shrink: 0;
  margin-top: 1px;
  transition: border-color .2s;
}

.nuda-tl-vertical__item--done .nuda-tl-vertical__dot {
  background: #e4ff54;
  border-color: #e4ff54;
}

.nuda-tl-vertical__item--done::before {
  background: rgba(228,255,84,.25);
}

.nuda-tl-vertical__item--active .nuda-tl-vertical__dot {
  background: #1a1a1a;
  border-color: #e4ff54;
  box-shadow: 0 0 0 3px rgba(228,255,84,.2);
  animation: _nuda-tlpulse 2s ease-in-out infinite;
}

.nuda-tl-vertical__body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nuda-tl-vertical__date {
  font-size: 10px;
  color: #777;
  letter-spacing: .04em;
}

.nuda-tl-vertical__title {
  margin: 0;
  font-size: 12px;
  color: #cfcfcf;
  font-weight: 500;
}

.nuda-tl-vertical__item--active .nuda-tl-vertical__title {
  color: #e4ff54;
}

@keyframes _nuda-tlpulse {
  0%,100% {
    box-shadow: 0 0 0 3px rgba(228,255,84,.2);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(228,255,84,0);
  }
}

@media (prefers-reduced-motion:reduce) {
  .nuda-tl-vertical__item--active .nuda-tl-vertical__dot {
    animation: none;
  }
}