breadcrumb trail.

<nav aria-label="Breadcrumb">
  <ol class="bcrumb-list">
    <li class="bcrumb-item"><a class="bcrumb-link" href="#">Home</a></li>
    <li class="bcrumb-item"><a class="bcrumb-link" href="#">Courses</a></li>
    <li class="bcrumb-item"><a class="bcrumb-link" href="#">Web Basics</a></li>
    <li class="bcrumb-item bcrumb-current">Building a Navbar</li>
  </ol>
</nav>

.bcrumb-list {
  box-sizing: border-box;
  list-style: none;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 13px;
}
.bcrumb-item {
  display: flex;
  align-items: center;
}
.bcrumb-item + .bcrumb-item::before {
  content: "/";
  margin: 0 10px;
  color: #d1d5db;
}
.bcrumb-link {
  text-decoration: none;
  color: #6b7280;
  font-weight: 500;
  transition: color 0.2s ease;
}
.bcrumb-link:hover {
  color: #3b82f6;
}
.bcrumb-current {
  color: #111827;
  font-weight: 700;
}