Vertical Stepper

<ol class="nuda-step-vert">
  <li class="is-done">
    <span class="nuda-step-vert__dot"></span>
    <div>
      <strong>Verify email</strong>
      <p>Confirm your address</p>
    </div>
  </li>
  <!-- More steps -->
</ol>

.nuda-step-vert {
  padding: 0 0 0 8px;
  margin: 0;
  list-style: none;
  position: relative;
  width: 100%;
  max-width: 240px;
}

.nuda-step-vert li {
  position: relative;
  display: flex;
  gap: 14px;
  padding-bottom: 18px;
}

.nuda-step-vert li:last-child {
  padding-bottom: 0;
}

.nuda-step-vert li::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 14px;
  bottom: -4px;
  width: 2px;
  background: rgba(255,255,255,.06);
  transition: background .5s;
}

.nuda-step-vert li:last-child::before {
  display: none;
}

.nuda-step-vert__dot {
  position: relative;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  border: 2px solid rgba(255,255,255,.1);
  flex-shrink: 0;
  margin-top: 1px;
  transition: background .35s,border-color .35s,transform .25s;
}

.nuda-step-vert li.is-done::before {
  background: #e4ff54;
}

.nuda-step-vert li.is-done .nuda-step-vert__dot {
  background: #e4ff54;
  border-color: #e4ff54;
}

.nuda-step-vert li.is-active .nuda-step-vert__dot {
  background: #e4ff54;
  border-color: #e4ff54;
  animation: _vstepPulse 2s ease-in-out infinite;
}

.nuda-step-vert strong {
  color: #fafafa;
  font-size: 12px;
  font-weight: 600;
  display: block;
  line-height: 1.3;
}

.nuda-step-vert p {
  color: #a0a0a8;
  font-size: 11px;
  margin: 1px 0 0;
}

.nuda-step-vert li.is-active strong {
  color: #e4ff54;
}

@keyframes _vstepPulse {
  0%,100% {
    box-shadow: 0 0 0 0 rgba(228,255,84,.5);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(228,255,84,0);
  }
}

@media (prefers-reduced-motion:reduce) {
  .nuda-step-vert li.is-active .nuda-step-vert__dot {
    animation: none;
  }
}