Bootstrap 5 Social Post Image Gallery with Lightbox
A social post with a mosaic photo grid that opens a full-size viewer with previous and next controls, plus like and comment actions.
<section class="wdw-stage">
<div class="container" style="max-width:640px">
<article class="wdw-card p-3 p-md-4">
<header class="d-flex align-items-center gap-3 mb-3">
<img src="https://i.pravatar.cc/96?img=12" width="48" height="48" class="rounded-circle" alt="Avery Collins">
<div class="lh-sm"><strong class="d-block">Avery Collins</strong><span class="small wdw-muted">12 hours ago · Public</span></div>
</header>
<p class="mb-3">What a weekend. Thank you to everyone who came out for the <a href="#" class="fw-semibold link-underline-opacity-0">#SummerSessions</a> tour. Here are my favourite shots.</p>
<div class="gal mb-3">
<button type="button" class="gal-item gal-item--lead" data-index="0" aria-label="Open photo 1 of 7: Crowd at an outdoor festival"><img src="https://images.unsplash.com/photo-1429962714451-bb934ecdc4ec?w=700&q=80" alt="Crowd at an outdoor festival" loading="lazy"></button>
<button type="button" class="gal-item" data-index="1" aria-label="Open photo 2 of 7: Guitarist on stage"><img src="https://images.unsplash.com/photo-1459749411175-04bf5292ceea?w=700&q=80" alt="Guitarist on stage" loading="lazy"></button>
<button type="button" class="gal-item" data-index="2" aria-label="Open photo 3 of 7: Concert lights over the crowd"><img src="https://images.unsplash.com/photo-1470229722913-7c0e2dbbafd3?w=700&q=80" alt="Concert lights over the crowd" loading="lazy"></button>
<button type="button" class="gal-item" data-index="3" aria-label="Open photo 4 of 7: Band performing at night"><img src="https://images.unsplash.com/photo-1493225457124-a3eb161ffa5f?w=700&q=80" alt="Band performing at night" loading="lazy"></button>
<button type="button" class="gal-item" data-index="4" aria-label="Open photo 5 of 7: Drummer behind a kit"><img src="https://images.unsplash.com/photo-1498038432885-c6f3f1b912ee?w=700&q=80" alt="Drummer behind a kit" loading="lazy"><span class="gal-more">+2</span></button>
</div>
<div class="d-flex gap-2 pb-3 mb-3 border-bottom">
<button type="button" class="btn btn-sm btn-outline-primary rounded-pill like-btn" aria-pressed="false"><svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M20.8 4.6a5.5 5.5 0 0 0-7.8 0L12 5.7l-1-1.1a5.5 5.5 0 0 0-7.8 7.8l1 1.1L12 21l7.8-7.5 1-1.1a5.5 5.5 0 0 0 0-7.8z"/></svg><span>Like</span> <span class="like-count">248</span></button>
<button type="button" class="btn btn-sm btn-outline-secondary rounded-pill">Comment</button>
<button type="button" class="btn btn-sm btn-outline-secondary rounded-pill ms-auto">Share</button>
</div>
<form class="d-flex align-items-center gap-2" onsubmit="return false">
<img src="https://i.pravatar.cc/72?img=5" width="36" height="36" class="rounded-circle" alt="">
<label class="visually-hidden" for="gal-comment">Write a comment</label>
<input id="gal-comment" type="text" class="form-control rounded-pill bg-body-tertiary border-0" placeholder="Write a comment...">
<button class="btn btn-primary rounded-pill px-3">Post</button>
</form>
</article>
</div>
<div class="modal fade" id="galModal" tabindex="-1" aria-label="Photo viewer" aria-hidden="true">
<div class="modal-dialog modal-dialog-centered modal-xl">
<div class="modal-content bg-transparent border-0">
<div class="position-relative">
<img id="galModalImg" class="img-fluid rounded-4 w-100" src="https://images.unsplash.com/photo-1429962714451-bb934ecdc4ec?w=1200&q=80" alt="Crowd at an outdoor festival">
<button type="button" class="btn-close btn-close-white position-absolute top-0 end-0 m-3" data-bs-dismiss="modal" aria-label="Close"></button>
<button type="button" class="gal-nav gal-prev" aria-label="Previous photo">‹</button>
<button type="button" class="gal-nav gal-next" aria-label="Next photo">›</button>
</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 */
.gal { display: grid; grid-template-columns: repeat(6, 1fr); gap: .5rem; }
.gal-item { position: relative; padding: 0; border: 0; overflow: hidden; border-radius: .75rem; aspect-ratio: 1; background: var(--bs-tertiary-bg); grid-column: span 2; cursor: zoom-in; }
.gal-item--lead { grid-column: span 6; aspect-ratio: 21/9; }
.gal-item:nth-child(n+2) { grid-column: span 3; aspect-ratio: 16/9; }
.gal-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.gal-item:hover img { transform: scale(1.05); }
.gal-item:focus-visible { outline: 3px solid var(--bs-primary); outline-offset: 2px; }
.gal-more { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; background: rgba(15,17,23,.6); color: #fff; font-size: 1.75rem; font-weight: 700; }
.gal-nav { position: absolute; top: 50%; transform: translateY(-50%); width: 44px; height: 44px; border-radius: 50%; border: 0; background: rgba(255,255,255,.9); color: #111; font-size: 1.75rem; line-height: 1; }
.gal-prev { left: .75rem; } .gal-next { right: .75rem; }
.like-btn.active { background: var(--bs-primary); color: #fff; }
[data-bs-theme="dark"] .like-btn.active { color: #0f1117; }
@media (prefers-reduced-motion: reduce) { .gal-item img { transition: none; } }
const GAL_SRC = ["https://images.unsplash.com/photo-1429962714451-bb934ecdc4ec?w=1200&q=80", "https://images.unsplash.com/photo-1459749411175-04bf5292ceea?w=1200&q=80", "https://images.unsplash.com/photo-1470229722913-7c0e2dbbafd3?w=1200&q=80", "https://images.unsplash.com/photo-1493225457124-a3eb161ffa5f?w=1200&q=80", "https://images.unsplash.com/photo-1498038432885-c6f3f1b912ee?w=1200&q=80", "https://images.unsplash.com/photo-1501386761578-eac5c94b800a?w=1200&q=80", "https://images.unsplash.com/photo-1506157786151-b8491531f063?w=1200&q=80"];
const GAL_ALT = ["Crowd at an outdoor festival", "Guitarist on stage", "Concert lights over the crowd", "Band performing at night", "Drummer behind a kit", "Silhouettes at sunset show", "Live music from the front row"];
function initGallery() {
const modalEl = document.getElementById('galModal');
const img = document.getElementById('galModalImg');
if (!modalEl || !img) return;
const modal = new bootstrap.Modal(modalEl);
let cur = 0;
const show = (i) => {
cur = (i + GAL_SRC.length) % GAL_SRC.length;
img.src = GAL_SRC[cur];
img.alt = GAL_ALT[cur];
};
document.querySelectorAll('.gal-item').forEach((b) => b.addEventListener('click', () => { show(+b.dataset.index); modal.show(); }));
modalEl.querySelector('.gal-prev').addEventListener('click', () => show(cur - 1));
modalEl.querySelector('.gal-next').addEventListener('click', () => show(cur + 1));
modalEl.addEventListener('keydown', (e) => {
if (e.key === 'ArrowLeft') show(cur - 1);
if (e.key === 'ArrowRight') show(cur + 1);
});
}
function initLike() {
const btn = document.querySelector('.like-btn');
if (!btn) return;
const count = btn.querySelector('.like-count');
btn.addEventListener('click', () => {
const on = btn.getAttribute('aria-pressed') !== 'true';
btn.setAttribute('aria-pressed', on);
btn.classList.toggle('active', on);
count.textContent = on ? 249 : 248;
});
}
initGallery();
initLike();
Built on Bootstrap 5.3.8 with plain JavaScript — no jQuery. Supports light and dark mode via data-bs-theme.