Bootstrap 5 Event Schedule Timeline

<section class="wdw-stage">
  <div class="container" style="max-width: 980px">
    <div class="wdw-card overflow-hidden">
      <div class="row g-0">
        <div class="col-lg-4">
          <div class="wdw-aurora h-100 p-4 d-flex flex-column justify-content-between gap-4">
            <div>
              <span class="badge rounded-pill text-bg-light mb-3">Saturday, 14 June</span>
              <h2 class="fw-bold display-6 mb-3" style="letter-spacing:-.02em">CSS Conference Schedule</h2>
              <p class="mb-0 opacity-75">One day, four talks and plenty of coffee. Here is how the day unfolds.</p>
            </div>
            <div class="small opacity-75">Main hall · 08:30 to 18:30</div>
          </div>
        </div>
        <div class="col-lg-8">
          <div class="p-4">
            <ol class="tl-list list-unstyled mb-0">
        <li class="tl-item tl-break">
          <span class="tl-dot" aria-hidden="true"></span>
          <time class="tl-time" datetime="08:30">08:30</time>
          <div class="tl-body"><span class="fw-semibold small">Registration and welcome coffee</span></div>
        </li>
        <li class="tl-item">
          <span class="tl-dot" aria-hidden="true"></span>
          <time class="tl-time" datetime="09:30">09:30</time>
          <div class="tl-body">
            <div class="small fw-semibold text-primary">Maya Lindqvist</div>
            <h3 class="h6 fw-bold mb-1">Layout for the modern web</h3>
            <p class="small wdw-muted mb-0">Flexbox, grid and container queries are finally enough to build any layout without a hack. Practical patterns and the traps to skip.</p>
          </div>
        </li>
        <li class="tl-item">
          <span class="tl-dot" aria-hidden="true"></span>
          <time class="tl-time" datetime="10:20">10:20</time>
          <div class="tl-body">
            <div class="small fw-semibold text-primary">Daniel Okafor</div>
            <h3 class="h6 fw-bold mb-1">What a redesign teaches us about CSS</h3>
            <p class="small wdw-muted mb-0">A look at the new features behind a recent relaunch and how you can use them in your own projects.</p>
          </div>
        </li>
        <li class="tl-item tl-break">
          <span class="tl-dot" aria-hidden="true"></span>
          <time class="tl-time" datetime="12:00">12:00</time>
          <div class="tl-body"><span class="fw-semibold small">Lunch</span></div>
        </li>
        <li class="tl-item">
          <span class="tl-dot" aria-hidden="true"></span>
          <time class="tl-time" datetime="13:00">13:00</time>
          <div class="tl-body">
            <div class="small fw-semibold text-primary">Sofia Marin</div>
            <h3 class="h6 fw-bold mb-1">Creative CSS and visual effects</h3>
            <p class="small wdw-muted mb-0">Case studies showing how a bit of imagination turns plain styles into memorable interfaces.</p>
          </div>
        </li>
        <li class="tl-item">
          <span class="tl-dot" aria-hidden="true"></span>
          <time class="tl-time" datetime="16:20">16:20</time>
          <div class="tl-body">
            <div class="small fw-semibold text-primary">Brian Hale</div>
            <h3 class="h6 fw-bold mb-1">Ten things to know about animation</h3>
            <p class="small wdw-muted mb-0">Common misunderstandings, hidden features and what is coming next for motion on the web.</p>
          </div>
        </li>
        <li class="tl-item tl-break">
          <span class="tl-dot" aria-hidden="true"></span>
          <time class="tl-time" datetime="18:30">18:30</time>
          <div class="tl-body"><span class="fw-semibold small">Closing remarks</span></div>
        </li>
            </ol>
          </div>
        </div>
      </div>
    </div>
  </div>
</section>

/* Web Designer Wall library style — shared base for every Bootstrap 5 snippet.
   Indigo accent, Plus Jakarta Sans, soft cards, pill buttons. Works in light and dark. */
@import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap");

:root,
[data-bs-theme="light"] {
  --wdw-font: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --bs-body-font-family: var(--wdw-font);
  --bs-primary: #4f46e5;
  --bs-primary-rgb: 79, 70, 229;
  --bs-primary-text-emphasis: #3730a3;
  --bs-primary-bg-subtle: #eef2ff;
  --bs-primary-border-subtle: #c7d2fe;
  --bs-link-color: #4f46e5;
  --bs-link-color-rgb: 79, 70, 229;
  --bs-link-hover-color: #4338ca;
  --bs-link-hover-color-rgb: 67, 56, 202;
  --bs-focus-ring-color: rgba(79, 70, 229, 0.25);
  --bs-border-radius: 0.75rem;
  --bs-border-radius-lg: 1rem;
  --bs-border-radius-xl: 1.25rem;
  --wdw-radius-card: 1.25rem;
  --wdw-shadow: 0 1px 2px rgba(16, 24, 40, 0.05), 0 16px 40px -16px rgba(16, 24, 40, 0.22);
  --wdw-shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06), 0 4px 12px -4px rgba(16, 24, 40, 0.12);
  --wdw-stage: #f5f6fb;
}

[data-bs-theme="dark"] {
  --bs-primary: #818cf8;
  --bs-primary-rgb: 129, 140, 248;
  --bs-primary-text-emphasis: #c7d2fe;
  --bs-primary-bg-subtle: rgba(129, 140, 248, 0.14);
  --bs-primary-border-subtle: rgba(129, 140, 248, 0.35);
  --bs-link-color: #a5b4fc;
  --bs-link-color-rgb: 165, 180, 252;
  --bs-link-hover-color: #c7d2fe;
  --bs-link-hover-color-rgb: 199, 210, 254;
  --bs-focus-ring-color: rgba(129, 140, 248, 0.35);
  --wdw-shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 16px 40px -16px rgba(0, 0, 0, 0.7);
  --wdw-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4), 0 4px 12px -4px rgba(0, 0, 0, 0.5);
  --wdw-stage: #0f1117;
}

body { font-family: var(--wdw-font); -webkit-font-smoothing: antialiased; }

/* Bootstrap compiles its blue into these components; point them at the accent. */
.btn-primary {
  --bs-btn-bg: var(--bs-primary); --bs-btn-border-color: var(--bs-primary);
  --bs-btn-hover-bg: #4338ca; --bs-btn-hover-border-color: #4338ca;
  --bs-btn-active-bg: #3730a3; --bs-btn-active-border-color: #3730a3;
  --bs-btn-disabled-bg: var(--bs-primary); --bs-btn-disabled-border-color: var(--bs-primary);
  --bs-btn-focus-shadow-rgb: var(--bs-primary-rgb);
}
[data-bs-theme="dark"] .btn-primary { --bs-btn-color: #0f1117; --bs-btn-hover-bg: #a5b4fc; --bs-btn-hover-border-color: #a5b4fc; --bs-btn-hover-color: #0f1117; --bs-btn-active-color: #0f1117; }
.btn-outline-primary {
  --bs-btn-color: var(--bs-primary); --bs-btn-border-color: var(--bs-primary);
  --bs-btn-hover-bg: var(--bs-primary); --bs-btn-hover-border-color: var(--bs-primary);
  --bs-btn-active-bg: var(--bs-primary); --bs-btn-active-border-color: var(--bs-primary);
  --bs-btn-focus-shadow-rgb: var(--bs-primary-rgb);
}
.btn { --bs-btn-font-weight: 600; min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: .5rem; }
.btn-sm { min-height: 36px; }
.form-control, .form-select { min-height: 44px; border-radius: .75rem; }
.form-control:focus, .form-select:focus, .form-check-input:focus { border-color: rgba(var(--bs-primary-rgb), .6); box-shadow: 0 0 0 .25rem var(--bs-focus-ring-color); }
.form-check-input:checked { background-color: var(--bs-primary); border-color: var(--bs-primary); }
.nav-pills { --bs-nav-pills-link-active-bg: var(--bs-primary); }
.nav { --bs-nav-link-color: var(--bs-secondary-color); --bs-nav-link-hover-color: var(--bs-emphasis-color); }
.pagination { --bs-pagination-active-bg: var(--bs-primary); --bs-pagination-active-border-color: var(--bs-primary); --bs-pagination-color: var(--bs-body-color); --bs-pagination-focus-box-shadow: 0 0 0 .25rem var(--bs-focus-ring-color); }
.progress, .progress-stacked { --bs-progress-bar-bg: var(--bs-primary); }
.list-group { --bs-list-group-active-bg: var(--bs-primary); --bs-list-group-active-border-color: var(--bs-primary); }
.dropdown-menu { --bs-dropdown-link-active-bg: var(--bs-primary); border-radius: .875rem; box-shadow: var(--wdw-shadow-sm); }
.accordion { --bs-accordion-active-bg: var(--bs-primary-bg-subtle); --bs-accordion-active-color: var(--bs-primary-text-emphasis); --bs-accordion-btn-focus-box-shadow: 0 0 0 .25rem var(--bs-focus-ring-color); }
.badge { font-weight: 600; }

/* Library building blocks — use these instead of re-inventing them per snippet. */
.wdw-stage { min-height: 100vh; display: flex; align-items: center; background: var(--wdw-stage); padding-block: 3rem; }
.wdw-card { background: var(--bs-body-bg); border: 1px solid var(--bs-border-color-translucent); border-radius: var(--wdw-radius-card); box-shadow: var(--wdw-shadow); }
.wdw-card-sm { background: var(--bs-body-bg); border: 1px solid var(--bs-border-color-translucent); border-radius: 1rem; box-shadow: var(--wdw-shadow-sm); }
.wdw-aurora { position: relative; color: #fff; background: radial-gradient(60% 55% at 100% 0, #818cf8 0, transparent 70%), radial-gradient(65% 60% at 0 100%, #ec4899 0, transparent 65%), #1e1b4b; }
.wdw-eyebrow { display: inline-block; font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--bs-primary); }
.wdw-heading { font-weight: 800; letter-spacing: -.02em; color: var(--bs-emphasis-color); }
.wdw-muted { color: var(--bs-secondary-color); }
.wdw-icon { width: 2.75rem; height: 2.75rem; flex: none; display: inline-flex; align-items: center; justify-content: center; border-radius: .875rem; background: var(--bs-primary-bg-subtle); color: var(--bs-primary); }

/* Component */
.tl-list { position: relative; display: grid; gap: .8rem; }
.tl-list::before { content: ""; position: absolute; left: 4.9rem; top: .5rem; bottom: .5rem; width: 2px; background: var(--bs-border-color); }
.tl-item { position: relative; display: grid; grid-template-columns: 3.4rem 1fr; column-gap: 2.1rem; align-items: start; }
.tl-time { font-variant-numeric: tabular-nums; font-weight: 700; font-size: .875rem; color: var(--bs-secondary-color); padding-top: .15rem; }
.tl-dot { position: absolute; left: 4.9rem; top: .4rem; width: 12px; height: 12px; margin-left: -5px; border-radius: 50%; background: var(--bs-primary); box-shadow: 0 0 0 4px var(--bs-body-bg), 0 0 0 5px var(--bs-primary-border-subtle); z-index: 1; }
.tl-break .tl-dot { background: var(--bs-body-bg); border: 2px solid var(--bs-secondary-color); box-shadow: 0 0 0 4px var(--bs-body-bg); }
.tl-item:not(.tl-break) .tl-body { background: var(--bs-tertiary-bg); border-radius: 1rem; padding: .7rem 1rem; }
.tl-break .tl-body { padding-top: .1rem; color: var(--bs-secondary-color); }
@media (max-width: 575.98px) {
  .tl-list::before, .tl-dot { left: 3.2rem; }
  .tl-item { grid-template-columns: 2.6rem 1fr; column-gap: 1.6rem; }
}