3D Push Checkbox
A keycap checkbox that stands on a solid edge. Checking pushes it down into the edge, floods it with the accent and pops the tick; pressing sinks it all the way. One box-shadow and a translate.
Also known as: 3d checkbox css, pressable checkbox, keycap checkbox.
HTML
<label class="chk-3d-push-checkbox">
<input type="checkbox">
<span class="chk-3d-push-checkbox-key">
<svg viewBox="0 0 24 24" aria-hidden="true"><path d="M5.5 12.5l4 4L18.5 7.5"/></svg>
</span>
Two-factor login
</label>CSS
.chk-3d-push-checkbox {
--c: var(--chk-color, #3b82f6);
font-size: var(--chk-size, 24px);
position: relative;
display: inline-flex;
align-items: center;
gap: 0.6em;
font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
line-height: 1.3;
cursor: pointer;
-webkit-tap-highlight-color: transparent;
gap: 0.7em;}
.chk-3d-push-checkbox input {
position: absolute;
inset: 0;
width: 100%;
height: 100%;
margin: 0;
opacity: 0;
cursor: pointer;
z-index: 1;
}
.chk-3d-push-checkbox-key {
--edge: color-mix(in srgb, var(--c) 30%, #94a3b8);
box-sizing: border-box;
display: grid;
place-items: center;
flex: none;
width: 1.5em;
height: 1.5em;
border: 0.1em solid var(--edge);
border-radius: 0.35em;
background: color-mix(in srgb, var(--c) 6%, #fff);
box-shadow: 0 0.25em 0 var(--edge);
transform: translateY(-0.125em);
transition:
transform 0.18s cubic-bezier(0.3, 0.7, 0.4, 1),
box-shadow 0.18s cubic-bezier(0.3, 0.7, 0.4, 1),
background-color 0.2s ease,
border-color 0.2s ease;
}
.chk-3d-push-checkbox-key svg {
display: block;
fill: none;
stroke-linecap: round;
stroke-linejoin: round;
width: 0.95em;
height: 0.95em;
stroke: #fff;
stroke-width: 3.2;
transform: scale(0);
transition: transform 0.12s ease-in;
}
.chk-3d-push-checkbox input:checked + .chk-3d-push-checkbox-key {
--edge: color-mix(in srgb, var(--c) 62%, #000);
background: var(--c);
box-shadow: 0 0.06em 0 var(--edge);
transform: translateY(0.065em);
}
.chk-3d-push-checkbox input:checked + .chk-3d-push-checkbox-key svg {
transform: scale(1);
transition: transform 0.4s cubic-bezier(0.34, 1.7, 0.64, 1) 0.06s;
}
.chk-3d-push-checkbox input:active + .chk-3d-push-checkbox-key {
box-shadow: 0 0 0 var(--edge);
transform: translateY(0.125em);
}
.chk-3d-push-checkbox input:focus-visible + .chk-3d-push-checkbox-key {
outline: 0.125em solid var(--c);
outline-offset: 0.18em;
}
@media (prefers-reduced-motion: reduce) {
.chk-3d-push-checkbox, .chk-3d-push-checkbox *, .chk-3d-push-checkbox::before, .chk-3d-push-checkbox::after, .chk-3d-push-checkbox *::before, .chk-3d-push-checkbox *::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}
}Customizing this snippet
- Color: set
--chk-coloron the element or a parent. Currently previewing#3b82f6. - Size: set
--chk-size. Every other dimension is inem, so the whole thing scales together. Currently previewing24px. - 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.