Weekend in Lisbon
Three days of tiles, tarts and trams.
Corner Frame Image Hover
Four white corner brackets sit at the edges of the photo like a viewfinder, then glide inward on hover to box in a caption as the photo dims. Each corner is one element moved with transform.
Also known as: corner brackets hover, viewfinder corners image, caption box corner lines.
HTML
<figure class="hfx-image-corner-brackets"> <div class="hfx-image-corner-brackets-photo" role="img" aria-label="Mountains under the stars"></div> <span class="hfx-image-corner-brackets-corner" aria-hidden="true"></span> <span class="hfx-image-corner-brackets-corner" aria-hidden="true"></span> <span class="hfx-image-corner-brackets-corner" aria-hidden="true"></span> <span class="hfx-image-corner-brackets-corner" aria-hidden="true"></span> <figcaption>Blue hour<small>Portfolio, 2024</small></figcaption> </figure>
CSS
.hfx-image-corner-brackets {
--c: var(--hfx-color, #3b82f6);
font-size: var(--hfx-size, 16px);
position: relative;
display: grid;
place-items: center;
width: 15em;
height: 9.5em;
margin: 0;
border-radius: 0.75em;
overflow: hidden;
color: #fff;
font-family: system-ui, sans-serif;
}
.hfx-image-corner-brackets-photo {
position: absolute;
inset: 0;
background:
radial-gradient(72% 42% at 22% 110%, color-mix(in srgb, var(--c) 10%, #020617) 99%, transparent),
radial-gradient(64% 36% at 86% 107%, color-mix(in srgb, var(--c) 14%, #020617) 99%, transparent),
conic-gradient(from 129deg at 70% 42%, transparent 0, color-mix(in srgb, var(--c) 22%, #0b1026) 0.4deg 101.6deg, transparent 102deg),
conic-gradient(from 118deg at 92% 54%, transparent 0, color-mix(in srgb, var(--c) 22%, #0b1026) 0.4deg 123.6deg, transparent 124deg),
conic-gradient(from 124deg at 28% 38%, transparent 0, color-mix(in srgb, var(--c) 36%, #111a3a) 0.4deg 111.6deg, transparent 112deg),
conic-gradient(from 126deg at 50% 52%, transparent 0, color-mix(in srgb, var(--c) 36%, #111a3a) 0.4deg 107.6deg, transparent 108deg),
radial-gradient(circle at 12% 18%, #fff 0 0.05em, transparent 0.09em),
radial-gradient(circle at 24% 30%, #fff 0 0.05em, transparent 0.09em),
radial-gradient(circle at 38% 12%, #fff 0 0.05em, transparent 0.09em),
radial-gradient(circle at 46% 26%, #fff 0 0.05em, transparent 0.09em),
radial-gradient(circle at 62% 16%, #fff 0 0.05em, transparent 0.09em),
radial-gradient(circle at 88% 22%, #fff 0 0.05em, transparent 0.09em),
radial-gradient(circle at 84% 40%, #fff 0 0.05em, transparent 0.09em),
radial-gradient(circle at 8% 42%, #fff 0 0.05em, transparent 0.09em),
radial-gradient(circle at 76% 24%, #f8fafc 0 0.65em, rgb(248 250 252 / 0.3) 0.75em, transparent 2.6em),
linear-gradient(color-mix(in srgb, var(--c) 20%, #020617), color-mix(in srgb, var(--c) 52%, #1e1b4b) 82%);
transition: filter 0.45s ease, transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.hfx-image-corner-brackets-corner {
--x: 1;
--y: 1;
position: absolute;
top: 0.7em;
left: 0.7em;
width: 1.1em;
height: 1.1em;
border: 0 solid #fff;
border-width: 0.14em 0 0 0.14em;
opacity: 0.85;
transition: transform 0.5s cubic-bezier(0.65, 0, 0.35, 1), opacity 0.3s ease;
}
.hfx-image-corner-brackets-corner:nth-of-type(2) {
--x: -1;
left: auto;
right: 0.7em;
border-width: 0.14em 0.14em 0 0;
}
.hfx-image-corner-brackets-corner:nth-of-type(3) {
--y: -1;
top: auto;
bottom: 0.7em;
border-width: 0 0 0.14em 0.14em;
}
.hfx-image-corner-brackets-corner:nth-of-type(4) {
--x: -1;
--y: -1;
inset: auto 0.7em 0.7em auto;
border-width: 0 0.14em 0.14em 0;
}
.hfx-image-corner-brackets figcaption {
position: relative;
display: grid;
gap: 0.3em;
padding: 0;
color: inherit;
font-family: inherit;
font-size: 1.15em;
font-weight: 700;
text-align: center;
opacity: 0;
transform: scale(0.9);
transition: opacity 0.25s ease, transform 0.3s ease;
}
.hfx-image-corner-brackets small {
font-size: 0.55em;
font-weight: 500;
letter-spacing: 0.16em;
text-transform: uppercase;
opacity: 0.8;
}
.hfx-image-corner-brackets:hover .hfx-image-corner-brackets-photo {
filter: brightness(0.6);
transform: scale(1.04);
}
.hfx-image-corner-brackets:hover .hfx-image-corner-brackets-corner {
opacity: 1;
transform: translate(calc(var(--x) * 2.2em), calc(var(--y) * 1.95em));
}
.hfx-image-corner-brackets:hover figcaption {
opacity: 1;
transform: none;
transition: opacity 0.35s ease 0.25s, transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1) 0.25s;
}
@media (prefers-reduced-motion: reduce) {
.hfx-image-corner-brackets, .hfx-image-corner-brackets *, .hfx-image-corner-brackets::before, .hfx-image-corner-brackets::after, .hfx-image-corner-brackets *::before, .hfx-image-corner-brackets *::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.