Accordion
Accordions stack collapsible panels so long content stays short and scannable. They are built on the collapse plugin: link each panel to a parent with data-bs-parent for one-at-a-time behaviour, or leave it out to let several stay open.
1Basic accordion
Three panels where opening one closes the others; the first panel starts open.
We measure success by how many attendees come back and tell their friends.
Built for attendees and speakers. Workshops are limited to thirty seats, so everyone gets hands-on time.
More than eighty speakers share what they have learned the hard way.
<div class="accordion" id="acc-699">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-700"> <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-701" aria-expanded="true" aria-controls="acc-body-701">What is Opal?</button> </h2>
<div id="acc-body-701" class="accordion-collapse collapse show" aria-labelledby="acc-head-700" data-bs-parent="#acc-699">
<div class="accordion-body">
<p class="mb-0">We measure success by how many attendees come back and tell their friends.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-702"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-703" aria-expanded="false" aria-controls="acc-body-703">Who is it for?</button> </h2>
<div id="acc-body-703" class="accordion-collapse collapse" aria-labelledby="acc-head-702" data-bs-parent="#acc-699">
<div class="accordion-body">
<p class="mb-0">Built for attendees and speakers. Workshops are limited to thirty seats, so everyone gets hands-on time.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-704"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-705" aria-expanded="false" aria-controls="acc-body-705">How do I get started?</button> </h2>
<div id="acc-body-705" class="accordion-collapse collapse" aria-labelledby="acc-head-704" data-bs-parent="#acc-699">
<div class="accordion-body">
<p class="mb-0">More than eighty speakers share what they have learned the hard way.</p>
</div>
</div>
</div>
</div>2Flush accordion
Removes the outer borders and rounded corners so the accordion sits edge to edge inside a parent.
Early bird tickets save you up to forty percent until the end of the month.
Clear prices, honest advice and no surprises along the way.
The venue is a short walk from the station and fully accessible.
<div class="accordion accordion-flush border-top border-bottom" id="acc-706">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-707"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-708" aria-expanded="false" aria-controls="acc-body-708">Sponsorship</button> </h2>
<div id="acc-body-708" class="accordion-collapse collapse" aria-labelledby="acc-head-707" data-bs-parent="#acc-706">
<div class="accordion-body">
<p class="mb-0">Early bird tickets save you up to forty percent until the end of the month.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-709"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-710" aria-expanded="false" aria-controls="acc-body-710">Live streaming</button> </h2>
<div id="acc-body-710" class="accordion-collapse collapse" aria-labelledby="acc-head-709" data-bs-parent="#acc-706">
<div class="accordion-body">
<p class="mb-0">Clear prices, honest advice and no surprises along the way.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-711"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-712" aria-expanded="false" aria-controls="acc-body-712">Ticketing</button> </h2>
<div id="acc-body-712" class="accordion-collapse collapse" aria-labelledby="acc-head-711" data-bs-parent="#acc-706">
<div class="accordion-body">
<p class="mb-0">The venue is a short walk from the station and fully accessible.</p>
</div>
</div>
</div>
</div>3Always open
Leave out data-bs-parent and each panel opens and closes on its own, so several can be open at once.
Our evening party is the best place to turn talks into friendships.
Every detail is handled by people who care about getting it right.
We keep things simple, so you can focus on what matters to you.
<div class="accordion">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-713"> <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-714" aria-expanded="true" aria-controls="acc-body-714">Morning session</button> </h2>
<div id="acc-body-714" class="accordion-collapse collapse show" aria-labelledby="acc-head-713">
<div class="accordion-body">
<p class="mb-0">Our evening party is the best place to turn talks into friendships.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-715"> <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-716" aria-expanded="true" aria-controls="acc-body-716">Afternoon session</button> </h2>
<div id="acc-body-716" class="accordion-collapse collapse show" aria-labelledby="acc-head-715">
<div class="accordion-body">
<p class="mb-0">Every detail is handled by people who care about getting it right.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-717"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-718" aria-expanded="false" aria-controls="acc-body-718">Evening wrap-up</button> </h2>
<div id="acc-body-718" class="accordion-collapse collapse" aria-labelledby="acc-head-717">
<div class="accordion-body">
<p class="mb-0">We keep things simple, so you can focus on what matters to you.</p>
</div>
</div>
</div>
</div>4All panels collapsed
Start with everything closed when the headers alone give a good overview.
Group tickets include a private meeting room for your team.
Every session is recorded, so you can catch up on anything you missed.
Friendly people answer your questions quickly, by phone, chat or email.
Our team has done this many times, so you never have to guess.
<div class="accordion" id="acc-719">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-720"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-721" aria-expanded="false" aria-controls="acc-body-721">Step 1 · Create your account</button> </h2>
<div id="acc-body-721" class="accordion-collapse collapse" aria-labelledby="acc-head-720" data-bs-parent="#acc-719">
<div class="accordion-body">
<p class="mb-0">Group tickets include a private meeting room for your team.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-722"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-723" aria-expanded="false" aria-controls="acc-body-723">Step 2 · Invite your team</button> </h2>
<div id="acc-body-723" class="accordion-collapse collapse" aria-labelledby="acc-head-722" data-bs-parent="#acc-719">
<div class="accordion-body">
<p class="mb-0">Every session is recorded, so you can catch up on anything you missed.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-724"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-725" aria-expanded="false" aria-controls="acc-body-725">Step 3 · Connect your tools</button> </h2>
<div id="acc-body-725" class="accordion-collapse collapse" aria-labelledby="acc-head-724" data-bs-parent="#acc-719">
<div class="accordion-body">
<p class="mb-0">Friendly people answer your questions quickly, by phone, chat or email.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-726"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-727" aria-expanded="false" aria-controls="acc-body-727">Step 4 · Publish</button> </h2>
<div id="acc-body-727" class="accordion-collapse collapse" aria-labelledby="acc-head-726" data-bs-parent="#acc-719">
<div class="accordion-body">
<p class="mb-0">Our team has done this many times, so you never have to guess.</p>
</div>
</div>
</div>
</div>5FAQ with icons
A help-centre FAQ: an icon in each header makes the questions easy to scan.
All major cards and bank transfer. Every attendee receives a certificate of participation.
Yes, upgrade or downgrade at any time. Sponsors meet decision-makers in a relaxed, friendly setting.
Start in minutes and get help from a real person whenever you need it.
Write to support any day of the week. Virtual passes let you join the main stage live from anywhere.
<div class="accordion" id="faq-728">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-729"> <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-730" aria-expanded="true" aria-controls="acc-body-730"><span class="text-primary me-2"><i class="bi bi-credit-card" aria-hidden="true"></i></span>Which payment methods do you accept?</button> </h2>
<div id="acc-body-730" class="accordion-collapse collapse show" aria-labelledby="acc-head-729" data-bs-parent="#faq-728">
<div class="accordion-body">
<p class="mb-0">All major cards and bank transfer. Every attendee receives a certificate of participation.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-731"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-732" aria-expanded="false" aria-controls="acc-body-732"><span class="text-primary me-2"><i class="bi bi-arrow-repeat" aria-hidden="true"></i></span>Can I change my plan later?</button> </h2>
<div id="acc-body-732" class="accordion-collapse collapse" aria-labelledby="acc-head-731" data-bs-parent="#faq-728">
<div class="accordion-body">
<p class="mb-0">Yes, upgrade or downgrade at any time. Sponsors meet decision-makers in a relaxed, friendly setting.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-733"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-734" aria-expanded="false" aria-controls="acc-body-734"><span class="text-primary me-2"><i class="bi bi-shield-check" aria-hidden="true"></i></span>Is my data safe?</button> </h2>
<div id="acc-body-734" class="accordion-collapse collapse" aria-labelledby="acc-head-733" data-bs-parent="#faq-728">
<div class="accordion-body">
<p class="mb-0">Start in minutes and get help from a real person whenever you need it.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-735"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-736" aria-expanded="false" aria-controls="acc-body-736"><span class="text-primary me-2"><i class="bi bi-headset" aria-hidden="true"></i></span>How do I contact support?</button> </h2>
<div id="acc-body-736" class="accordion-collapse collapse" aria-labelledby="acc-head-735" data-bs-parent="#faq-728">
<div class="accordion-body">
<p class="mb-0">Write to support any day of the week. Virtual passes let you join the main stage live from anywhere.</p>
</div>
</div>
</div>
</div>6Headers with badges
Count badges pushed to the right show how many items wait inside each panel.
Every session is recorded, so you can catch up on anything you missed.
Clear prices, honest advice and no surprises along the way.
The networking app helps you meet the right people before you arrive.
<div class="accordion" id="acc-737">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-738"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-739" aria-expanded="false" aria-controls="acc-body-739"><span class="flex-grow-1">Open tickets</span><span class="badge text-bg-danger rounded-pill me-3">4</span></button> </h2>
<div id="acc-body-739" class="accordion-collapse collapse" aria-labelledby="acc-head-738" data-bs-parent="#acc-737">
<div class="accordion-body">
<p class="mb-0">Every session is recorded, so you can catch up on anything you missed.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-740"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-741" aria-expanded="false" aria-controls="acc-body-741"><span class="flex-grow-1">Waiting for reply</span><span class="badge text-bg-warning rounded-pill me-3">1</span></button> </h2>
<div id="acc-body-741" class="accordion-collapse collapse" aria-labelledby="acc-head-740" data-bs-parent="#acc-737">
<div class="accordion-body">
<p class="mb-0">Clear prices, honest advice and no surprises along the way.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-742"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-743" aria-expanded="false" aria-controls="acc-body-743"><span class="flex-grow-1">Resolved this week</span><span class="badge text-bg-success rounded-pill me-3">48</span></button> </h2>
<div id="acc-body-743" class="accordion-collapse collapse" aria-labelledby="acc-head-742" data-bs-parent="#acc-737">
<div class="accordion-body">
<p class="mb-0">The networking app helps you meet the right people before you arrive.</p>
</div>
</div>
</div>
</div>7Settings panel in a card
A flush accordion inside a card groups account settings into tidy sections.
Account settings
Friendly people answer your questions quickly, by phone, chat or email.
<div class="card">
<div class="card-header fw-semibold">
<i class="bi bi-gear" aria-hidden="true"></i> Account settings
</div>
<div class="accordion accordion-flush" id="acc-744">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-747"> <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-748" aria-expanded="true" aria-controls="acc-body-748">Profile</button> </h2>
<div id="acc-body-748" class="accordion-collapse collapse show" aria-labelledby="acc-head-747" data-bs-parent="#acc-744">
<div class="accordion-body">
<div class="mb-3">
<label class="form-label" for="set-name-745">Display name</label>
<input class="form-control" id="set-name-745" type="text" value="Amara Mensah">
</div>
<button type="button" class="btn btn-primary btn-sm">Save profile</button>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-749"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-750" aria-expanded="false" aria-controls="acc-body-750">Notifications</button> </h2>
<div id="acc-body-750" class="accordion-collapse collapse" aria-labelledby="acc-head-749" data-bs-parent="#acc-744">
<div class="accordion-body">
<div class="form-check form-switch">
<input class="form-check-input" type="checkbox" role="switch" id="set-switch-746" checked>
<label class="form-check-label" for="set-switch-746">Email me about new activity</label>
</div>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-751"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-752" aria-expanded="false" aria-controls="acc-body-752">Privacy</button> </h2>
<div id="acc-body-752" class="accordion-collapse collapse" aria-labelledby="acc-head-751" data-bs-parent="#acc-744">
<div class="accordion-body">
<p class="mb-0 text-body-secondary">Friendly people answer your questions quickly, by phone, chat or email.</p>
</div>
</div>
</div>
</div>
</div>8Order history
Each header summarises an order (number, date, status); the body holds the line items.
| Item | Qty | Total |
|---|---|---|
| Masterclass | 1 | $232.00 |
| Item | Qty | Total |
|---|---|---|
| Workshop ticket | 1 | $143.00 |
| Item | Qty | Total |
|---|---|---|
| Early bird pass | 1 | $280.99 |
<div class="accordion" id="orders-753">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-754"> <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-755" aria-expanded="true" aria-controls="acc-body-755"><span class="fw-semibold me-2">#INV-1490</span><span class="text-body-secondary small flex-grow-1">Nov 4, 2025</span><span class="badge text-bg-success me-3">Shipped</span></button> </h2>
<div id="acc-body-755" class="accordion-collapse collapse show" aria-labelledby="acc-head-754" data-bs-parent="#orders-753">
<div class="accordion-body">
<div class="table-responsive">
<table class="table table-sm mb-0">
<thead>
<tr>
<th scope="col">Item</th>
<th scope="col">Qty</th>
<th scope="col" class="text-end">Total</th>
</tr>
</thead>
<tbody>
<tr>
<td>Masterclass</td>
<td>1</td>
<td class="text-end">$232.00</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-756"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-757" aria-expanded="false" aria-controls="acc-body-757"><span class="fw-semibold me-2">#ORD-5746</span><span class="text-body-secondary small flex-grow-1">Oct 15, 2026</span><span class="badge text-bg-warning me-3">Processing</span></button> </h2>
<div id="acc-body-757" class="accordion-collapse collapse" aria-labelledby="acc-head-756" data-bs-parent="#orders-753">
<div class="accordion-body">
<div class="table-responsive">
<table class="table table-sm mb-0">
<thead>
<tr>
<th scope="col">Item</th>
<th scope="col">Qty</th>
<th scope="col" class="text-end">Total</th>
</tr>
</thead>
<tbody>
<tr>
<td>Workshop ticket</td>
<td>1</td>
<td class="text-end">$143.00</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-758"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-759" aria-expanded="false" aria-controls="acc-body-759"><span class="fw-semibold me-2">#TX-5314</span><span class="text-body-secondary small flex-grow-1">Oct 26, 2025</span><span class="badge text-bg-secondary me-3">Cancelled</span></button> </h2>
<div id="acc-body-759" class="accordion-collapse collapse" aria-labelledby="acc-head-758" data-bs-parent="#orders-753">
<div class="accordion-body">
<div class="table-responsive">
<table class="table table-sm mb-0">
<thead>
<tr>
<th scope="col">Item</th>
<th scope="col">Qty</th>
<th scope="col" class="text-end">Total</th>
</tr>
</thead>
<tbody>
<tr>
<td>Early bird pass</td>
<td>1</td>
<td class="text-end">$280.99</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
</div>9Sidebar navigation
Collapsible menu sections with list groups as bodies, a common admin sidebar pattern.
<div class="accordion ca-acc-nav" id="nav-760" style="max-width: 320px;">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-761"> <button class="accordion-button py-2" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-762" aria-expanded="true" aria-controls="acc-body-762"><i class="bi bi-speedometer2" aria-hidden="true"></i><span class="ms-2">Dashboard</span></button> </h2>
<div id="acc-body-762" class="accordion-collapse collapse show" aria-labelledby="acc-head-761" data-bs-parent="#nav-760">
<div class="accordion-body">
<div class="list-group list-group-flush">
<a href="#" class="list-group-item list-group-item-action active" aria-current="true">Overview</a><a href="#" class="list-group-item list-group-item-action">Reports</a><a href="#" class="list-group-item list-group-item-action">Live view</a>
</div>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-763"> <button class="accordion-button collapsed py-2" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-764" aria-expanded="false" aria-controls="acc-body-764"><i class="bi bi-people" aria-hidden="true"></i><span class="ms-2">Customers</span></button> </h2>
<div id="acc-body-764" class="accordion-collapse collapse" aria-labelledby="acc-head-763" data-bs-parent="#nav-760">
<div class="accordion-body">
<div class="list-group list-group-flush">
<a href="#" class="list-group-item list-group-item-action">All customers</a><a href="#" class="list-group-item list-group-item-action">Segments</a>
</div>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-765"> <button class="accordion-button collapsed py-2" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-766" aria-expanded="false" aria-controls="acc-body-766"><i class="bi bi-box-seam" aria-hidden="true"></i><span class="ms-2">Catalogue</span></button> </h2>
<div id="acc-body-766" class="accordion-collapse collapse" aria-labelledby="acc-head-765" data-bs-parent="#nav-760">
<div class="accordion-body">
<div class="list-group list-group-flush">
<a href="#" class="list-group-item list-group-item-action">Products</a><a href="#" class="list-group-item list-group-item-action">Categories</a><a href="#" class="list-group-item list-group-item-action">Inventory</a>
</div>
</div>
</div>
</div>
</div>10Checkout steps
A checkout split into steps, each holding a small form; a classic one-page checkout layout.
Order total: $373.22
<div class="accordion" id="checkout-767">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-773"> <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-774" aria-expanded="true" aria-controls="acc-body-774"><span class="badge rounded-pill text-bg-primary me-2">1</span>Shipping address</button> </h2>
<div id="acc-body-774" class="accordion-collapse collapse show" aria-labelledby="acc-head-773" data-bs-parent="#checkout-767">
<div class="accordion-body">
<div class="row g-2">
<div class="col-12">
<label class="form-label" for="co-name-768">Full name</label>
<input class="form-control" id="co-name-768" type="text" placeholder="Elena Larsen">
</div>
<div class="col-md-8">
<label class="form-label" for="co-addr-769">Street</label>
<input class="form-control" id="co-addr-769" type="text" placeholder="167 Willow Way">
</div>
<div class="col-md-4">
<label class="form-label" for="co-city-770">City</label>
<input class="form-control" id="co-city-770" type="text" placeholder="Seoul">
</div>
</div>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-775"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-776" aria-expanded="false" aria-controls="acc-body-776"><span class="badge rounded-pill text-bg-secondary me-2">2</span>Delivery method</button> </h2>
<div id="acc-body-776" class="accordion-collapse collapse" aria-labelledby="acc-head-775" data-bs-parent="#checkout-767">
<div class="accordion-body">
<div class="form-check">
<input class="form-check-input" type="radio" name="co-ship-771" id="co-ship-771" checked>
<label class="form-check-label" for="co-ship-771">Standard (3-5 days) · Free</label>
</div>
<div class="form-check">
<input class="form-check-input" type="radio" name="co-ship-771" id="co-ship-772">
<label class="form-check-label" for="co-ship-772">Express (1-2 days) · $14.35</label>
</div>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-777"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-778" aria-expanded="false" aria-controls="acc-body-778"><span class="badge rounded-pill text-bg-secondary me-2">3</span>Review and pay</button> </h2>
<div id="acc-body-778" class="accordion-collapse collapse" aria-labelledby="acc-head-777" data-bs-parent="#checkout-767">
<div class="accordion-body">
<p>Order total: <strong>$373.22</strong></p>
<button type="button" class="btn btn-success"><i class="bi bi-lock" aria-hidden="true"></i> Place order</button>
</div>
</div>
</div>
</div>11Media in the body
Panels can hold any content: here an image with a short description side by side.
Virtual passes let you join the main stage live from anywhere.
View project
We keep things simple, so you can focus on what matters to you.
<div class="accordion" id="acc-779">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-780"> <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-781" aria-expanded="true" aria-controls="acc-body-781">Joining online: how the virtual pass works</button> </h2>
<div id="acc-body-781" class="accordion-collapse collapse show" aria-labelledby="acc-head-780" data-bs-parent="#acc-779">
<div class="accordion-body">
<div class="row g-3 align-items-center">
<div class="col-sm-4">
<img src="https://images.unsplash.com/photo-1769755409781-9e8924c57362?auto=format&fit=crop&w=1200&h=800&q=70" class="img-fluid rounded" alt="Project preview">
</div>
<div class="col-sm-8">
<p class="mb-2">Virtual passes let you join the main stage live from anywhere.</p>
<a href="#" class="btn btn-outline-primary btn-sm">View project</a>
</div>
</div>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-782"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-783" aria-expanded="false" aria-controls="acc-body-783">What we learned from last year's feedback</button> </h2>
<div id="acc-body-783" class="accordion-collapse collapse" aria-labelledby="acc-head-782" data-bs-parent="#acc-779">
<div class="accordion-body">
<div class="row g-3 align-items-center">
<div class="col-sm-4">
<img src="https://images.unsplash.com/photo-1762968274962-20c12e6e8ecd?auto=format&fit=crop&w=1200&h=800&q=70" class="img-fluid rounded" alt="Project preview">
</div>
<div class="col-sm-8">
<p class="mb-0">We keep things simple, so you can focus on what matters to you.</p>
</div>
</div>
</div>
</div>
</div>
</div>12Tinted active header
A little custom CSS tints the open header with the theme primary colour.
We listen first, then build a plan around what you actually need.
Sponsors meet decision-makers in a relaxed, friendly setting.
More than eighty speakers share what they have learned the hard way.
<div class="accordion ca-acc-tint" id="acc-784">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-785"> <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-786" aria-expanded="true" aria-controls="acc-body-786">Design</button> </h2>
<div id="acc-body-786" class="accordion-collapse collapse show" aria-labelledby="acc-head-785" data-bs-parent="#acc-784">
<div class="accordion-body">
<p class="mb-0">We listen first, then build a plan around what you actually need.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-787"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-788" aria-expanded="false" aria-controls="acc-body-788">Development</button> </h2>
<div id="acc-body-788" class="accordion-collapse collapse" aria-labelledby="acc-head-787" data-bs-parent="#acc-784">
<div class="accordion-body">
<p class="mb-0">Sponsors meet decision-makers in a relaxed, friendly setting.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-789"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-790" aria-expanded="false" aria-controls="acc-body-790">Launch</button> </h2>
<div id="acc-body-790" class="accordion-collapse collapse" aria-labelledby="acc-head-789" data-bs-parent="#acc-784">
<div class="accordion-body">
<p class="mb-0">More than eighty speakers share what they have learned the hard way.</p>
</div>
</div>
</div>
</div>13Nested accordion
An accordion inside a panel for two-level content such as chapters and lessons.
Group tickets include a private meeting room for your team.
Our team has done this many times, so you never have to guess.
The venue is a short walk from the station and fully accessible.
<div class="accordion" id="acc-791">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-797"> <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-798" aria-expanded="true" aria-controls="acc-body-798">Chapter 1 · Foundations</button> </h2>
<div id="acc-body-798" class="accordion-collapse collapse show" aria-labelledby="acc-head-797" data-bs-parent="#acc-791">
<div class="accordion-body">
<div class="accordion" id="acc-inner-792">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-793"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-794" aria-expanded="false" aria-controls="acc-body-794">Lesson 1.1</button> </h2>
<div id="acc-body-794" class="accordion-collapse collapse" aria-labelledby="acc-head-793" data-bs-parent="#acc-inner-792">
<div class="accordion-body">
<p class="mb-0">Group tickets include a private meeting room for your team.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-795"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-796" aria-expanded="false" aria-controls="acc-body-796">Lesson 1.2</button> </h2>
<div id="acc-body-796" class="accordion-collapse collapse" aria-labelledby="acc-head-795" data-bs-parent="#acc-inner-792">
<div class="accordion-body">
<p class="mb-0">Our team has done this many times, so you never have to guess.</p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-799"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-800" aria-expanded="false" aria-controls="acc-body-800">Chapter 2 · Going further</button> </h2>
<div id="acc-body-800" class="accordion-collapse collapse" aria-labelledby="acc-head-799" data-bs-parent="#acc-791">
<div class="accordion-body">
<p class="mb-0">The venue is a short walk from the station and fully accessible.</p>
</div>
</div>
</div>
</div>14Compact accordion
Smaller padding and text for dense side panels and filters.
Webinar, Meetup
& up
<div class="accordion ca-acc-sm" id="acc-801" style="max-width: 360px;">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-804"> <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-805" aria-expanded="true" aria-controls="acc-body-805">Price</button> </h2>
<div id="acc-body-805" class="accordion-collapse collapse show" aria-labelledby="acc-head-804" data-bs-parent="#acc-801">
<div class="accordion-body">
<div class="form-check">
<input class="form-check-input" type="checkbox" id="chk-802">
<label class="form-check-label" for="chk-802">Under $50</label>
</div>
<div class="form-check">
<input class="form-check-input" type="checkbox" id="chk-803">
<label class="form-check-label" for="chk-803">$50 – $200</label>
</div>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-806"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-807" aria-expanded="false" aria-controls="acc-body-807">Category</button> </h2>
<div id="acc-body-807" class="accordion-collapse collapse" aria-labelledby="acc-head-806" data-bs-parent="#acc-801">
<div class="accordion-body">
<p class="mb-0">Webinar, Meetup</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-808"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-809" aria-expanded="false" aria-controls="acc-body-809">Rating</button> </h2>
<div id="acc-body-809" class="accordion-collapse collapse" aria-labelledby="acc-head-808" data-bs-parent="#acc-801">
<div class="accordion-body">
<p class="mb-0 text-warning"><i class="bi bi-star-fill" aria-hidden="true"></i><i class="bi bi-star-fill" aria-hidden="true"></i><i class="bi bi-star-fill" aria-hidden="true"></i><i class="bi bi-star-fill" aria-hidden="true"></i><i class="bi bi-star" aria-hidden="true"></i> & up</p>
</div>
</div>
</div>
</div>15Two-column pricing FAQ
Two independent accordions side by side fill wide screens and stack on phones.
Yes, 7 days with every feature. Start in minutes and get help from a real person whenever you need it.
Our evening party is the best place to turn talks into friendships.
Yearly billing saves 18%. We measure success by how many attendees come back and tell their friends.
Every attendee receives a certificate of participation.
<div class="row g-3">
<div class="col-md-6">
<div class="accordion" id="faq-810">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-812"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-813" aria-expanded="false" aria-controls="acc-body-813">Is there a free trial?</button> </h2>
<div id="acc-body-813" class="accordion-collapse collapse" aria-labelledby="acc-head-812" data-bs-parent="#faq-810">
<div class="accordion-body">
<p class="mb-0">Yes, 7 days with every feature. Start in minutes and get help from a real person whenever you need it.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-814"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-815" aria-expanded="false" aria-controls="acc-body-815">Do you offer refunds?</button> </h2>
<div id="acc-body-815" class="accordion-collapse collapse" aria-labelledby="acc-head-814" data-bs-parent="#faq-810">
<div class="accordion-body">
<p class="mb-0">Our evening party is the best place to turn talks into friendships.</p>
</div>
</div>
</div>
</div>
</div>
<div class="col-md-6">
<div class="accordion" id="faq-811">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-816"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-817" aria-expanded="false" aria-controls="acc-body-817">Can I pay yearly?</button> </h2>
<div id="acc-body-817" class="accordion-collapse collapse" aria-labelledby="acc-head-816" data-bs-parent="#faq-811">
<div class="accordion-body">
<p class="mb-0">Yearly billing saves 18%. We measure success by how many attendees come back and tell their friends.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-818"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-819" aria-expanded="false" aria-controls="acc-body-819">Are there discounts for nonprofits?</button> </h2>
<div id="acc-body-819" class="accordion-collapse collapse" aria-labelledby="acc-head-818" data-bs-parent="#faq-811">
<div class="accordion-body">
<p class="mb-0">Every attendee receives a certificate of participation.</p>
</div>
</div>
</div>
</div>
</div>
</div>16Team directory
Avatars and roles in the headers; contact details appear when a person is opened.
Austin · theo.tanaka@example.com
Edinburgh · arjun.fischer@example.com
Prague · owen.varga@example.com
<div class="accordion" id="team-820">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-821"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-822" aria-expanded="false" aria-controls="acc-body-822"><img src="../assets/img/avatar-5.svg" alt="Theo Tanaka" class="rounded-circle flex-shrink-0" width="36" height="36"><span class="ms-3"><span class="d-block fw-semibold">Theo Tanaka</span><span class="small text-body-secondary">Marketing Lead</span></span></button> </h2>
<div id="acc-body-822" class="accordion-collapse collapse" aria-labelledby="acc-head-821" data-bs-parent="#team-820">
<div class="accordion-body">
<p class="mb-2"><i class="bi bi-geo-alt" aria-hidden="true"></i> Austin · <i class="bi bi-envelope" aria-hidden="true"></i> theo.tanaka@example.com</p>
<button type="button" class="btn btn-sm btn-outline-primary">Send message</button>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-823"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-824" aria-expanded="false" aria-controls="acc-body-824"><img src="../assets/img/avatar-9.svg" alt="Arjun Fischer" class="rounded-circle flex-shrink-0" width="36" height="36"><span class="ms-3"><span class="d-block fw-semibold">Arjun Fischer</span><span class="small text-body-secondary">Content Writer</span></span></button> </h2>
<div id="acc-body-824" class="accordion-collapse collapse" aria-labelledby="acc-head-823" data-bs-parent="#team-820">
<div class="accordion-body">
<p class="mb-2"><i class="bi bi-geo-alt" aria-hidden="true"></i> Edinburgh · <i class="bi bi-envelope" aria-hidden="true"></i> arjun.fischer@example.com</p>
<button type="button" class="btn btn-sm btn-outline-primary">Send message</button>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-825"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-826" aria-expanded="false" aria-controls="acc-body-826"><img src="../assets/img/avatar-7.svg" alt="Owen Varga" class="rounded-circle flex-shrink-0" width="36" height="36"><span class="ms-3"><span class="d-block fw-semibold">Owen Varga</span><span class="small text-body-secondary">Product Designer</span></span></button> </h2>
<div id="acc-body-826" class="accordion-collapse collapse" aria-labelledby="acc-head-825" data-bs-parent="#team-820">
<div class="accordion-body">
<p class="mb-2"><i class="bi bi-geo-alt" aria-hidden="true"></i> Prague · <i class="bi bi-envelope" aria-hidden="true"></i> owen.varga@example.com</p>
<button type="button" class="btn btn-sm btn-outline-primary">Send message</button>
</div>
</div>
</div>
</div>17Changelog
Release notes per version with type badges; the newest release starts open.
- NewCertificates
- ImprovedRecorded sessions
- FixedSeveral layout issues on small screens
- FixedExport now keeps the column order
<div class="accordion" id="changelog-827">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-828"> <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-829" aria-expanded="true" aria-controls="acc-body-829"><span class="fw-semibold me-2">v4.3.0</span><span class="badge text-bg-primary">Latest</span></button> </h2>
<div id="acc-body-829" class="accordion-collapse collapse show" aria-labelledby="acc-head-828" data-bs-parent="#changelog-827">
<div class="accordion-body">
<ul class="mb-0">
<li><span class="badge text-bg-success me-1">New</span>Certificates</li>
<li><span class="badge text-bg-info me-1">Improved</span>Recorded sessions</li>
<li><span class="badge text-bg-danger me-1">Fixed</span>Several layout issues on small screens</li>
</ul>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-830"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-831" aria-expanded="false" aria-controls="acc-body-831"><span class="fw-semibold me-2">v2.6.2</span><span class="small text-body-secondary">Feb 18, 2026</span></button> </h2>
<div id="acc-body-831" class="accordion-collapse collapse" aria-labelledby="acc-head-830" data-bs-parent="#changelog-827">
<div class="accordion-body">
<ul class="mb-0">
<li><span class="badge text-bg-danger me-1">Fixed</span>Export now keeps the column order</li>
</ul>
</div>
</div>
</div>
</div>18Actions inside panels
Panels that end with buttons, useful for reviewing and approving requests.
6 days from Jan 3, 2027. Thousands of attendees already trust us, and we work hard to keep it that way.
Workshops are limited to thirty seats, so everyone gets hands-on time.
<div class="accordion" id="acc-832">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-833"> <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-834" aria-expanded="true" aria-controls="acc-body-834">Leave request · Finn Morgan</button> </h2>
<div id="acc-body-834" class="accordion-collapse collapse show" aria-labelledby="acc-head-833" data-bs-parent="#acc-832">
<div class="accordion-body">
<p>6 days from Jan 3, 2027. Thousands of attendees already trust us, and we work hard to keep it that way.</p>
<div class="d-flex gap-2">
<button type="button" class="btn btn-success btn-sm"><i class="bi bi-check-lg" aria-hidden="true"></i> Approve</button>
<button type="button" class="btn btn-outline-danger btn-sm"><i class="bi bi-x-lg" aria-hidden="true"></i> Decline</button>
</div>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-835"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-836" aria-expanded="false" aria-controls="acc-body-836">Expense claim · $733.53</button> </h2>
<div id="acc-body-836" class="accordion-collapse collapse" aria-labelledby="acc-head-835" data-bs-parent="#acc-832">
<div class="accordion-body">
<p>Workshops are limited to thirty seats, so everyone gets hands-on time.</p>
<div class="d-flex gap-2">
<button type="button" class="btn btn-success btn-sm">Approve</button>
<button type="button" class="btn btn-outline-secondary btn-sm">Ask for receipt</button>
</div>
</div>
</div>
</div>
</div>19Dark accordion
Wrap it in data-bs-theme="dark" to get a dark accordion on any page.
Early bird tickets save you up to forty percent until the end of the month.
Press Ctrl + K to search everywhere.
<div data-bs-theme="dark" class="bg-dark p-3 rounded">
<div class="accordion" id="acc-837">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-838"> <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-839" aria-expanded="true" aria-controls="acc-body-839">Night mode</button> </h2>
<div id="acc-body-839" class="accordion-collapse collapse show" aria-labelledby="acc-head-838" data-bs-parent="#acc-837">
<div class="accordion-body">
<p class="mb-0">Early bird tickets save you up to forty percent until the end of the month.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-840"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-841" aria-expanded="false" aria-controls="acc-body-841">Keyboard shortcuts</button> </h2>
<div id="acc-body-841" class="accordion-collapse collapse" aria-labelledby="acc-head-840" data-bs-parent="#acc-837">
<div class="accordion-body">
<p class="mb-0">Press <kbd>Ctrl</kbd> + <kbd>K</kbd> to search everywhere.</p>
</div>
</div>
</div>
</div>
</div>20Course modules with progress
Each module shows its completion in the header and a progress bar inside.
Every detail is handled by people who care about getting it right.
Three days of keynotes, hands-on workshops and evening meetups.
Start in minutes and get help from a real person whenever you need it.
<div class="accordion" id="course-842">
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-843"> <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-844" aria-expanded="false" aria-controls="acc-body-844"><span class="flex-grow-1"><span class="text-success me-2"><i class="bi bi-check-circle-fill" aria-hidden="true"></i></span>Module 1: Getting started</span><span class="small text-body-secondary me-3">100%</span></button> </h2>
<div id="acc-body-844" class="accordion-collapse collapse" aria-labelledby="acc-head-843" data-bs-parent="#course-842">
<div class="accordion-body">
<div class="progress mb-2" role="progressbar" aria-label="Module progress" aria-valuenow="100" aria-valuemin="0" aria-valuemax="100" style="height: 6px;">
<div class="progress-bar" style="width: 100%;">
</div>
</div>
<p class="mb-0 small">Every detail is handled by people who care about getting it right.</p>
</div>
</div>
</div>
<div class="accordion-item">
<h2 class="accordion-header" id="acc-head-845"> <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#acc-body-846" aria-expanded="true" aria-controls="acc-body-846"><span class="flex-grow-1">Module 2: Core skills</span><span class="small text-body-secondary me-3">53%</span></button> </h2>
<div id="acc-body-846" class="accordion-collapse collapse show" aria-labelledby="acc-head-845" data-bs-parent="#course-842">
<div class="accordion-body">
<div class="progress mb-2" role="progressbar" aria-label="Module progress" aria-valuenow="53" aria-valuemin="0" aria-valuemax="100" style="height: 6px;">
<div class="progress-bar" style="width: 53%;">
</div>
</div>
<p class="mb-0 small">Three days of keynotes, hands-on workshops and evening meetups.</p>
</div>
</div>
</div>
<div class="accordion-item">
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