A row of tag chips that act as checkboxes for filters. Each chip's plus sign folds into a checkmark as the chip fills with the accent. The two bars only move with transform, so the morph stays smooth.
Also known as: css checkbox as button, checkbox chips css, make checkbox look like button.
<div class="chk-filter-chips" role="group" aria-label="Topics"> <label class="chk-filter-chips-chip"><input type="checkbox" checked><span class="chk-filter-chips-bg"></span><span class="chk-filter-chips-icon"><i></i><i></i></span><span class="chk-filter-chips-text">Design</span></label> <label class="chk-filter-chips-chip"><input type="checkbox"><span class="chk-filter-chips-bg"></span><span class="chk-filter-chips-icon"><i></i><i></i></span><span class="chk-filter-chips-text">Code</span></label> <label class="chk-filter-chips-chip"><input type="checkbox"><span class="chk-filter-chips-bg"></span><span class="chk-filter-chips-icon"><i></i><i></i></span><span class="chk-filter-chips-text">Music</span></label> <label class="chk-filter-chips-chip"><input type="checkbox" checked><span class="chk-filter-chips-bg"></span><span class="chk-filter-chips-icon"><i></i><i></i></span><span class="chk-filter-chips-text">Travel</span></label> <label class="chk-filter-chips-chip"><input type="checkbox"><span class="chk-filter-chips-bg"></span><span class="chk-filter-chips-icon"><i></i><i></i></span><span class="chk-filter-chips-text">Food</span></label> </div>
.chk-filter-chips {
--c: var(--chk-color, #3b82f6);
font-size: var(--chk-size, 24px);
display: flex;
flex-wrap: wrap;
justify-content: center;
gap: 0.45em;
max-width: 15em;}
.chk-filter-chips-chip {
position: relative;
display: inline-flex;
align-items: center;
gap: 0.4em;
padding: 0.4em 0.85em 0.4em 0.7em;
font-size: 0.85em;
font-weight: 500;
line-height: 1.2;
cursor: pointer;
-webkit-user-select: none;
user-select: none;
transition: color 0.25s ease;
}
.chk-filter-chips-chip input {
position: absolute;
inset: 0;
width: 100%;
height: 100%;
margin: 0;
opacity: 0;
cursor: pointer;
z-index: 1;
}
.chk-filter-chips-bg {
position: absolute;
inset: 0;
border: 0.09em solid color-mix(in srgb, currentColor 25%, transparent);
border-radius: 2em;
transition: background-color 0.25s ease, border-color 0.25s ease;
}
.chk-filter-chips-icon {
position: relative;
flex: none;
width: 0.75em;
height: 0.75em;
}
.chk-filter-chips-icon i {
position: absolute;
left: 0;
top: 50%;
width: 100%;
height: 0.15em;
margin-top: -0.075em;
border-radius: 1em;
background: currentColor;
transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.chk-filter-chips-icon i:first-child {
transform: translate(0, 0) rotate(0deg) scaleX(0.85);
}
.chk-filter-chips-icon i:last-child {
transform: translate(0, 0) rotate(-90deg) scaleX(0.85);
}
.chk-filter-chips-text {
position: relative;
}
.chk-filter-chips-chip:hover .chk-filter-chips-bg {
border-color: var(--c);
}
.chk-filter-chips-chip:has(input:checked) {
color: #fff;
}
.chk-filter-chips-chip input:checked + .chk-filter-chips-bg {
background: var(--c);
border-color: var(--c);
animation: chk-filter-chips-press 0.35s ease-out;
}
.chk-filter-chips-chip input:checked ~ .chk-filter-chips-icon i:first-child {
transform: translate(-0.18em, 0.11em) rotate(43deg) scaleX(0.4);
}
.chk-filter-chips-chip input:checked ~ .chk-filter-chips-icon i:last-child {
transform: translate(0.11em, 0.01em) rotate(-47deg) scaleX(0.75);
}
.chk-filter-chips-chip input:focus-visible + .chk-filter-chips-bg {
outline: 0.12em solid var(--c);
outline-offset: 0.18em;
}
@keyframes chk-filter-chips-press {
0% { transform: scale(1); }
40% { transform: scale(0.92); }
100% { transform: scale(1); }
}
@media (prefers-reduced-motion: reduce) {
.chk-filter-chips, .chk-filter-chips *, .chk-filter-chips::before, .chk-filter-chips::after, .chk-filter-chips *::before, .chk-filter-chips *::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}
}--chk-color on the element or a parent.
Currently previewing #3b82f6.--chk-size. Every other dimension is in
em, so the whole thing scales together. Currently previewing 24px.transition or animation
shorthand. Staggered delays are relative, so they keep their rhythm.