Brand identity
Logo, type and color for a small coffee roaster.
Corner Border Card Hover
Four accent corner brackets stretch along the edges until they meet and close the frame. It is eight background layers on one pseudo-element, and background-size is the only thing that moves.
Also known as: corner border hover effect, corner brackets css, border grows from corners.
HTML
<article class="hfx-card-corner-brackets"> <span class="hfx-card-corner-brackets-num">03</span> <h3>Brand identity</h3> <p>Logo, type and color for a small coffee roaster.</p> </article>
CSS
.hfx-card-corner-brackets {
--c: var(--hfx-color, #3b82f6);
font-size: var(--hfx-size, 16px);
position: relative;
box-sizing: border-box;
width: 14em;
padding: 1.2em 1.3em 1.3em;
background: color-mix(in srgb, var(--c) 0%, transparent);
font-family: system-ui, sans-serif;
transition: background-color 0.4s ease;
}
.hfx-card-corner-brackets:hover { background: color-mix(in srgb, var(--c) 7%, transparent); }
.hfx-card-corner-brackets::before {
content: "";
position: absolute;
inset: 0;
pointer-events: none;
background:
linear-gradient(var(--c) 0 0) 0 0 / 1.2em 2px no-repeat,
linear-gradient(var(--c) 0 0) 0 0 / 2px 1.2em no-repeat,
linear-gradient(var(--c) 0 0) 100% 0 / 1.2em 2px no-repeat,
linear-gradient(var(--c) 0 0) 100% 0 / 2px 1.2em no-repeat,
linear-gradient(var(--c) 0 0) 0 100% / 1.2em 2px no-repeat,
linear-gradient(var(--c) 0 0) 0 100% / 2px 1.2em no-repeat,
linear-gradient(var(--c) 0 0) 100% 100% / 1.2em 2px no-repeat,
linear-gradient(var(--c) 0 0) 100% 100% / 2px 1.2em no-repeat;
transition: background-size 0.5s cubic-bezier(0.65, 0, 0.35, 1);
}
.hfx-card-corner-brackets:hover::before {
background-size: 50.5% 2px, 2px 50.5%, 50.5% 2px, 2px 50.5%, 50.5% 2px, 2px 50.5%, 50.5% 2px, 2px 50.5%;
}
.hfx-card-corner-brackets-num {
display: inline-block;
font: 700 0.75em ui-monospace, monospace;
color: var(--c);
transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.hfx-card-corner-brackets:hover .hfx-card-corner-brackets-num { transform: translateX(0.4em); }
.hfx-card-corner-brackets h3 {
margin: 0.4em 0 0.3em;
font-size: 1.05em;
font-weight: 600;
}
.hfx-card-corner-brackets p {
margin: 0;
font-size: 0.8em;
line-height: 1.45;
opacity: 0.7;
}
@media (prefers-reduced-motion: reduce) {
.hfx-card-corner-brackets, .hfx-card-corner-brackets *, .hfx-card-corner-brackets::before, .hfx-card-corner-brackets::after, .hfx-card-corner-brackets *::before, .hfx-card-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.