Modern CSS Filter Effects
Grayscale, blur, hue, sepia, duotone and glow filters for photos, logos, icons and text.
1Hue Rotation
Continuously cycles the colours of a gradient, illustration or image through the colour wheel. Class: fx-hue-rotation
<div class="d-flex flex-wrap align-items-center justify-content-center gap-3 p-3 h-100" style="min-height:200px">
<div class="fx-hue-rotation rounded-circle" style="width:96px;height:96px;background:linear-gradient(135deg, var(--wt-primary), var(--wt-accent))">
</div>
<img src="../assets/img/photo-3.svg" alt="Photo cycling through hues" class="fx-hue-rotation object-fit-cover rounded-3" style="width:150px;height:110px">
</div>
/* CSS (already in assets/css/effects.css) */
.fx-hue-rotation { animation: fx-hue-rotation-hue 8s linear infinite; }
@keyframes fx-hue-rotation-hue { to { filter: hue-rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
.fx-hue-rotation, .fx-hue-rotation::before, .fx-hue-rotation::after, .fx-hue-rotation *, .fx-hue-rotation *::before, .fx-hue-rotation *::after { animation: none !important; transition: none !important; }
}2Multiple Filters
Stacks contrast, saturation and a drop shadow, then swaps to a warmer combination on hover. Class: fx-multiple-filters
<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-3.svg" alt="Product with layered filters" class="fx-multiple-filters object-fit-contain" style="width:150px;height:150px">
</div>
/* CSS (already in assets/css/effects.css) */
.fx-multiple-filters { filter: contrast(1.15) saturate(1.3) drop-shadow(0 10px 14px rgba(var(--wt-primary-rgb), .35)); transition: filter .5s ease; }
.fx-multiple-filters:hover { filter: contrast(1.25) saturate(1.6) sepia(.25) drop-shadow(0 16px 22px rgba(var(--wt-accent-rgb), .45)); }
@media (prefers-reduced-motion: reduce) {
.fx-multiple-filters, .fx-multiple-filters::before, .fx-multiple-filters::after, .fx-multiple-filters *, .fx-multiple-filters *::before, .fx-multiple-filters *::after { animation: none !important; transition: none !important; }
}3Text Filter Effects
Headings come into focus from a blur with a coloured drop shadow - a cinematic title reveal. Class: fx-text-filter-effects
Feel better with expert care
<div class="d-flex flex-wrap align-items-center justify-content-center gap-3 p-3 h-100" style="min-height:200px">
<h2 class="h2 fw-bold text-primary text-center mb-0 fx-text-filter-effects">Feel better with expert care</h2>
</div>
/* CSS (already in assets/css/effects.css) */
.fx-text-filter-effects { filter: drop-shadow(0 4px 10px rgba(var(--wt-primary-rgb), .45)); animation: fx-text-filter-effects-focus 5s ease-in-out infinite; }
@keyframes fx-text-filter-effects-focus {
0% { filter: blur(8px) drop-shadow(0 4px 10px rgba(var(--wt-primary-rgb), 0)); opacity: .2; letter-spacing: .25em; }
30%, 85% { filter: blur(0) drop-shadow(0 4px 10px rgba(var(--wt-primary-rgb), .45)); opacity: 1; letter-spacing: normal; }
100% { filter: blur(0) drop-shadow(0 4px 10px rgba(var(--wt-primary-rgb), .45)); opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
.fx-text-filter-effects, .fx-text-filter-effects::before, .fx-text-filter-effects::after, .fx-text-filter-effects *, .fx-text-filter-effects *::before, .fx-text-filter-effects *::after { animation: none !important; transition: none !important; }
}