Weekend in Lisbon
Three days of tiles, tarts and trams.
Ken Burns Image Hover
Hovering starts a slow documentary-style push and pan across the photo while letterbox bars slide in. The hover transition runs 8 seconds, the exit only 0.8, so it never feels stuck.
Also known as: slow zoom pan hover, cinematic image hover, ken burns effect css.
HTML
<figure class="hfx-image-ken-burns"> <div class="hfx-image-ken-burns-photo" role="img" aria-label="Valley at dusk"></div> </figure>
CSS
.hfx-image-ken-burns {
--c: var(--hfx-color, #3b82f6);
font-size: var(--hfx-size, 16px);
position: relative;
width: 15em;
height: 9.5em;
margin: 0;
border-radius: 0.75em;
overflow: hidden;
}
.hfx-image-ken-burns-photo {
position: absolute;
inset: 0;
background:
radial-gradient(70% 40% at 16% 110%, color-mix(in srgb, var(--c) 18%, #0b0a1f) 99%, transparent),
radial-gradient(66% 38% at 88% 108%, color-mix(in srgb, var(--c) 24%, #0b0a1f) 99%, transparent),
conic-gradient(from 128deg at 68% 44%, transparent 0, color-mix(in srgb, var(--c) 32%, #1e1b4b) 0.4deg 103.6deg, transparent 104deg),
conic-gradient(from 119deg at 90% 52%, transparent 0, color-mix(in srgb, var(--c) 32%, #1e1b4b) 0.4deg 121.6deg, transparent 122deg),
conic-gradient(from 123deg at 24% 40%, transparent 0, color-mix(in srgb, var(--c) 42%, #6b2159) 0.4deg 113.6deg, transparent 114deg),
conic-gradient(from 125deg at 46% 54%, transparent 0, color-mix(in srgb, var(--c) 42%, #6b2159) 0.4deg 109.6deg, transparent 110deg),
radial-gradient(circle at 38% 58%, #fef3c7 0 1em, rgb(254 215 170 / 0.55) 1.1em, transparent 4.2em),
linear-gradient(color-mix(in srgb, var(--c) 58%, #1e1b4b), color-mix(in srgb, var(--c) 34%, #f472b6) 52%, color-mix(in srgb, var(--c) 12%, #fdba74) 76%);
transform-origin: 70% 40%;
transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}
.hfx-image-ken-burns::before,
.hfx-image-ken-burns::after {
content: "";
position: absolute;
z-index: 1;
left: 0;
right: 0;
height: 0.9em;
background: #05060f;
transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.hfx-image-ken-burns::before {
top: 0;
transform: translateY(-100%);
}
.hfx-image-ken-burns::after {
bottom: 0;
transform: translateY(100%);
}
.hfx-image-ken-burns:hover .hfx-image-ken-burns-photo {
transform: scale(1.3) translate(-4%, 2%);
transition: transform 8s cubic-bezier(0.2, 0, 0.3, 1);
}
.hfx-image-ken-burns:hover::before,
.hfx-image-ken-burns:hover::after {
transform: none;
}
@media (prefers-reduced-motion: reduce) {
.hfx-image-ken-burns, .hfx-image-ken-burns *, .hfx-image-ken-burns::before, .hfx-image-ken-burns::after, .hfx-image-ken-burns *::before, .hfx-image-ken-burns *::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}
}Customizing this snippet
- Color: set
--hfx-coloron the element or a parent. Currently previewing#3b82f6. - Base size: set
--hfx-size. Every other dimension is inem, so the whole thing scales together. Currently previewing16px. - Speed: change the duration on the
transitionoranimationshorthand. Staggered delays are relative, so they keep their rhythm. - Reduced motion: the rule at the end of the CSS turns the motion off for people who asked their OS for less of it. Keep it.