Modern CSS Filter Effects
Grayscale, blur, hue, sepia, duotone and glow filters for photos, logos, icons and text.
1Sepia Vintage
An old-photo look with sepia tones and a soft vignette; works on an img or a wrapper around one. Class: fx-sepia-vintage
<div class="d-flex flex-wrap align-items-center justify-content-center gap-3 p-3 h-100" style="min-height:200px">
<figure class="fx-sepia-vintage rounded-3 mb-0">
<img src="https://images.unsplash.com/photo-1584467541268-b040f83be3fd?auto=format&fit=crop&w=1200&h=800&q=70" alt="Vintage style photo" class="d-block object-fit-cover" style="width:210px;height:145px">
</figure>
</div>
/* CSS (already in assets/css/effects.css) */
.fx-sepia-vintage { position: relative; display: inline-block; overflow: hidden; }
img.fx-sepia-vintage, .fx-sepia-vintage img { filter: sepia(.75) contrast(1.1) brightness(.95) saturate(.85); transition: filter .5s ease; }
.fx-sepia-vintage::after { content: ""; position: absolute; inset: 0; pointer-events: none; box-shadow: inset 0 0 50px rgba(60, 35, 10, .55); border-radius: inherit; }
img.fx-sepia-vintage:hover, .fx-sepia-vintage:hover img { filter: sepia(0) contrast(1) brightness(1) saturate(1); }
@media (prefers-reduced-motion: reduce) {
.fx-sepia-vintage, .fx-sepia-vintage::before, .fx-sepia-vintage::after, .fx-sepia-vintage *, .fx-sepia-vintage *::before, .fx-sepia-vintage *::after { animation: none !important; transition: none !important; }
}2Neon Glow
Wraps icons, logos and transparent images in a flickering neon halo using drop-shadow. Class: fx-filter-neon-glow
<div class="d-flex flex-wrap align-items-center justify-content-center gap-3 p-3 h-100" style="min-height:200px">
<div class="bg-dark rounded-4 p-4 d-flex gap-4 fs-1">
<span class="fx-filter-neon-glow"><i class="bi bi-lightning-charge-fill" aria-hidden="true"></i></span><span class="fx-filter-neon-glow"><i class="bi bi-music-note-beamed" aria-hidden="true"></i></span><span class="fx-filter-neon-glow"><i class="bi bi-moon-stars-fill" aria-hidden="true"></i></span>
</div>
</div>
/* CSS (already in assets/css/effects.css) */
.fx-filter-neon-glow {
color: var(--wt-primary-ink);
filter: drop-shadow(0 0 4px var(--wt-primary)) drop-shadow(0 0 12px var(--wt-primary));
animation: fx-filter-neon-glow-flicker 3s linear infinite;
}
@keyframes fx-filter-neon-glow-flicker {
0%, 18%, 22%, 62%, 64%, 100% { filter: drop-shadow(0 0 4px var(--wt-primary)) drop-shadow(0 0 12px var(--wt-primary)); }
20%, 63% { filter: drop-shadow(0 0 1px var(--wt-primary)); }
}
@media (prefers-reduced-motion: reduce) {
.fx-filter-neon-glow, .fx-filter-neon-glow::before, .fx-filter-neon-glow::after, .fx-filter-neon-glow *, .fx-filter-neon-glow *::before, .fx-filter-neon-glow *::after { animation: none !important; transition: none !important; }
}3Saturation Boost
Desaturated at rest, vivid on hover - draws attention to the product the visitor is looking at. Class: fx-saturation-boost
<div class="d-flex flex-wrap align-items-center justify-content-center gap-3 p-3 h-100" style="min-height:200px">
<img src="../assets/img/product-5.svg" alt="Product with boosted colour" class="fx-saturation-boost rounded-3 object-fit-cover" style="width:120px;height:120px"><img src="../assets/img/product-6.svg" alt="Second product" class="fx-saturation-boost rounded-3 object-fit-cover" style="width:120px;height:120px">
</div>
/* CSS (already in assets/css/effects.css) */
.fx-saturation-boost { filter: saturate(.6); transition: filter .4s ease, transform .4s ease; }
.fx-saturation-boost:hover, .fx-saturation-boost:focus-visible { filter: saturate(1.8); transform: scale(1.03); }
@media (prefers-reduced-motion: reduce) {
.fx-saturation-boost, .fx-saturation-boost::before, .fx-saturation-boost::after, .fx-saturation-boost *, .fx-saturation-boost *::before, .fx-saturation-boost *::after { animation: none !important; transition: none !important; }
}