Weekend in Lisbon
Three days of tiles, tarts and trams.
Blur to Focus Image Hover
A soft, out of focus photo snaps sharp on hover while camera autofocus brackets close in and fade, like a focus pull. The blur is a filter transition, the brackets are background gradients.
Also known as: blur on hover image, unblur image hover, focus pull effect.
HTML
<figure class="hfx-image-blur-focus"> <div class="hfx-image-blur-focus-photo" role="img" aria-label="Sunset over the sea"></div> <span class="hfx-image-blur-focus-af" aria-hidden="true"></span> </figure>
CSS
.hfx-image-blur-focus {
--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-blur-focus-photo {
position: absolute;
inset: 0;
background:
radial-gradient(9% 30% at 50% 74%, rgb(255 255 255 / 0.55), transparent),
linear-gradient(transparent 62%, color-mix(in srgb, var(--c) 78%, #0f172a) 62%, color-mix(in srgb, var(--c) 62%, #0f172a) 74%, color-mix(in srgb, var(--c) 40%, #020617)),
radial-gradient(34% 16% at 6% 63%, color-mix(in srgb, var(--c) 36%, #0f172a) 99%, transparent),
radial-gradient(20% 9% at 92% 62%, color-mix(in srgb, var(--c) 48%, #1e293b) 99%, transparent),
radial-gradient(circle at 50% 50%, #fffbeb 0 0.9em, rgb(254 243 199 / 0.5) 1em, transparent 3.6em),
linear-gradient(color-mix(in srgb, var(--c) 56%, #fff), color-mix(in srgb, var(--c) 18%, #fed7aa) 62%);
filter: blur(0.3em) saturate(0.8);
transform: scale(1.1);
transition: filter 0.5s ease, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.hfx-image-blur-focus-af {
--arm: 0.7em;
--line: 0.14em;
position: absolute;
inset: 0;
width: 4.4em;
height: 2.8em;
margin: auto;
background:
linear-gradient(#fff 0 0) 0 0 / var(--arm) var(--line),
linear-gradient(#fff 0 0) 0 0 / var(--line) var(--arm),
linear-gradient(#fff 0 0) 100% 0 / var(--arm) var(--line),
linear-gradient(#fff 0 0) 100% 0 / var(--line) var(--arm),
linear-gradient(#fff 0 0) 0 100% / var(--arm) var(--line),
linear-gradient(#fff 0 0) 0 100% / var(--line) var(--arm),
linear-gradient(#fff 0 0) 100% 100% / var(--arm) var(--line),
linear-gradient(#fff 0 0) 100% 100% / var(--line) var(--arm);
background-repeat: no-repeat;
transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
}
.hfx-image-blur-focus:hover .hfx-image-blur-focus-photo {
filter: none;
transform: none;
}
.hfx-image-blur-focus:hover .hfx-image-blur-focus-af {
transform: scale(0.75);
opacity: 0;
transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease 0.35s;
}
@media (prefers-reduced-motion: reduce) {
.hfx-image-blur-focus, .hfx-image-blur-focus *, .hfx-image-blur-focus::before, .hfx-image-blur-focus::after, .hfx-image-blur-focus *::before, .hfx-image-blur-focus *::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.