Bootstrap 5 Animated Skill Bars Chart

A skills chart with eight animated progress bars and counting percentages that play when the card scrolls into view, with a replay button.

Bootstrap 5 No jQuery Feb 2020 2K views

<section class="wdw-stage">
  <div class="container" style="max-width:920px">
    <div class="wdw-card p-4 p-md-5 sk-card" id="skills">
      <div class="d-flex flex-wrap justify-content-between align-items-end gap-3 mb-4">
        <div><span class="wdw-eyebrow">Skills</span><h1 class="h2 wdw-heading mb-0">What I work with</h1></div>
        <button type="button" class="btn btn-outline-primary rounded-pill btn-sm" id="skReplay">Replay</button>
      </div>
      <ul class="list-unstyled mb-0 sk-grid">
        <li class="sk-row">
          <div class="d-flex justify-content-between align-items-baseline mb-2"><span class="fw-semibold fs-6">HTML5</span><span class="d-flex align-items-center gap-2"><span class="badge rounded-pill bg-primary-subtle text-primary-emphasis d-none d-sm-inline">Expert</span><span class="fw-bold text-body-emphasis" data-count="95">0</span><span class="small text-body-secondary">%</span></span></div>
          <div class="progress sk-bar" role="progressbar" aria-label="HTML5" aria-valuenow="95" aria-valuemin="0" aria-valuemax="100"><div class="progress-bar rounded-pill" data-value="95"></div></div>
        </li>
        <li class="sk-row">
          <div class="d-flex justify-content-between align-items-baseline mb-2"><span class="fw-semibold fs-6">CSS3</span><span class="d-flex align-items-center gap-2"><span class="badge rounded-pill bg-primary-subtle text-primary-emphasis d-none d-sm-inline">Expert</span><span class="fw-bold text-body-emphasis" data-count="92">0</span><span class="small text-body-secondary">%</span></span></div>
          <div class="progress sk-bar" role="progressbar" aria-label="CSS3" aria-valuenow="92" aria-valuemin="0" aria-valuemax="100"><div class="progress-bar rounded-pill" data-value="92"></div></div>
        </li>
        <li class="sk-row">
          <div class="d-flex justify-content-between align-items-baseline mb-2"><span class="fw-semibold fs-6">JavaScript</span><span class="d-flex align-items-center gap-2"><span class="badge rounded-pill bg-primary-subtle text-primary-emphasis d-none d-sm-inline">Advanced</span><span class="fw-bold text-body-emphasis" data-count="84">0</span><span class="small text-body-secondary">%</span></span></div>
          <div class="progress sk-bar" role="progressbar" aria-label="JavaScript" aria-valuenow="84" aria-valuemin="0" aria-valuemax="100"><div class="progress-bar rounded-pill" data-value="84"></div></div>
        </li>
        <li class="sk-row">
          <div class="d-flex justify-content-between align-items-baseline mb-2"><span class="fw-semibold fs-6">Vue.js</span><span class="d-flex align-items-center gap-2"><span class="badge rounded-pill bg-primary-subtle text-primary-emphasis d-none d-sm-inline">Proficient</span><span class="fw-bold text-body-emphasis" data-count="70">0</span><span class="small text-body-secondary">%</span></span></div>
          <div class="progress sk-bar" role="progressbar" aria-label="Vue.js" aria-valuenow="70" aria-valuemin="0" aria-valuemax="100"><div class="progress-bar rounded-pill" data-value="70"></div></div>
        </li>
        <li class="sk-row">
          <div class="d-flex justify-content-between align-items-baseline mb-2"><span class="fw-semibold fs-6">PHP / MySQL</span><span class="d-flex align-items-center gap-2"><span class="badge rounded-pill bg-primary-subtle text-primary-emphasis d-none d-sm-inline">Advanced</span><span class="fw-bold text-body-emphasis" data-count="76">0</span><span class="small text-body-secondary">%</span></span></div>
          <div class="progress sk-bar" role="progressbar" aria-label="PHP / MySQL" aria-valuenow="76" aria-valuemin="0" aria-valuemax="100"><div class="progress-bar rounded-pill" data-value="76"></div></div>
        </li>
        <li class="sk-row">
          <div class="d-flex justify-content-between align-items-baseline mb-2"><span class="fw-semibold fs-6">Laravel</span><span class="d-flex align-items-center gap-2"><span class="badge rounded-pill bg-primary-subtle text-primary-emphasis d-none d-sm-inline">Working</span><span class="fw-bold text-body-emphasis" data-count="58">0</span><span class="small text-body-secondary">%</span></span></div>
          <div class="progress sk-bar" role="progressbar" aria-label="Laravel" aria-valuenow="58" aria-valuemin="0" aria-valuemax="100"><div class="progress-bar rounded-pill" data-value="58"></div></div>
        </li>
        <li class="sk-row">
          <div class="d-flex justify-content-between align-items-baseline mb-2"><span class="fw-semibold fs-6">Photoshop</span><span class="d-flex align-items-center gap-2"><span class="badge rounded-pill bg-primary-subtle text-primary-emphasis d-none d-sm-inline">Advanced</span><span class="fw-bold text-body-emphasis" data-count="82">0</span><span class="small text-body-secondary">%</span></span></div>
          <div class="progress sk-bar" role="progressbar" aria-label="Photoshop" aria-valuenow="82" aria-valuemin="0" aria-valuemax="100"><div class="progress-bar rounded-pill" data-value="82"></div></div>
        </li>
        <li class="sk-row">
          <div class="d-flex justify-content-between align-items-baseline mb-2"><span class="fw-semibold fs-6">Illustrator</span><span class="d-flex align-items-center gap-2"><span class="badge rounded-pill bg-primary-subtle text-primary-emphasis d-none d-sm-inline">Proficient</span><span class="fw-bold text-body-emphasis" data-count="74">0</span><span class="small text-body-secondary">%</span></span></div>
          <div class="progress sk-bar" role="progressbar" aria-label="Illustrator" aria-valuenow="74" aria-valuemin="0" aria-valuemax="100"><div class="progress-bar rounded-pill" data-value="74"></div></div>
        </li>
      </ul>
    </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 */
.sk-grid { display: grid; gap: 1.75rem 3rem; grid-template-columns: 1fr; }
@media (min-width: 768px) { .sk-grid { grid-template-columns: 1fr 1fr; } }
.sk-bar { height: .8rem; background: var(--bs-secondary-bg); }
.sk-bar .progress-bar { width: 0; background: var(--bs-primary); transition: width 1.1s cubic-bezier(.17,.67,0,1); }
@media (prefers-reduced-motion: reduce) { .sk-bar .progress-bar { transition: none; } }
.sk-card { padding-block: 3rem !important; }
.sk-card .badge { font-size: .75rem; }

function initSkillBars() {
  const root = document.getElementById('skills');
  if (!root) return;
  const bars = root.querySelectorAll('.progress-bar');
  const counts = root.querySelectorAll('[data-count]');
  const reduce = window.matchMedia('(prefers-reduced-motion: reduce)').matches;
  const run = () => {
    bars.forEach((b) => { b.style.width = b.dataset.value + '%'; });
    counts.forEach((c) => {
      const target = +c.dataset.count;
      if (reduce) { c.textContent = target; return; }
      const t0 = performance.now();
      const tick = (t) => {
        const p = Math.min((t - t0) / 1100, 1);
        c.textContent = Math.round(target * (1 - Math.pow(1 - p, 3)));
        if (p < 1) requestAnimationFrame(tick);
      };
      requestAnimationFrame(tick);
    });
  };
  const reset = () => { bars.forEach((b) => { b.style.width = '0'; }); counts.forEach((c) => { c.textContent = '0'; }); };
  const io = new IntersectionObserver((entries) => {
    if (entries.some((e) => e.isIntersecting)) { run(); io.disconnect(); }
  }, { threshold: 0.2 });
  io.observe(root);
  const btn = document.getElementById('skReplay');
  if (btn) btn.addEventListener('click', () => { reset(); setTimeout(run, 60); });
}
initSkillBars();

Built on Bootstrap 5.3.8 with plain JavaScript — no jQuery. Supports light and dark mode via data-bs-theme.

Bootstrap 5 Animated Skill Bars Chart

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