3D Rocker Switch
A power strip rocker in a dark bezel: the paddle tips on its center line with perspective, the pressed half shades darker, and the I side lights up in your accent when it is on.
Also known as: css rocker switch, power rocker switch, i o rocker switch css.
HTML
<label class="tgl-rocker">
<input type="checkbox" role="switch" aria-label="Power">
<span class="tgl-rocker-bezel" aria-hidden="true">
<span class="tgl-rocker-paddle">
<span class="tgl-rocker-i"></span>
<span class="tgl-rocker-o"></span>
</span>
</span>
</label>CSS
.tgl-rocker {
--c: var(--tgl-color, #3b82f6);
font-size: var(--tgl-size, 24px);
position: relative;
display: inline-block;
vertical-align: middle;
cursor: pointer;
-webkit-tap-highlight-color: transparent;
}
.tgl-rocker input {
position: absolute;
inset: 0;
width: 100%;
height: 100%;
margin: 0;
opacity: 0;
cursor: pointer;
z-index: 1;
}
.tgl-rocker-bezel {
display: block;
padding: 0.3em;
border-radius: 0.6em;
background: linear-gradient(#3b3e46, #1c1e23);
box-shadow: 0 0.25em 0.6em rgb(0 0 0 / 0.3), inset 0 1px 0 rgb(255 255 255 / 0.14);
perspective: 6em;
}
.tgl-rocker-paddle {
position: relative;
display: grid;
grid-template-columns: 1fr 1fr;
width: 5em;
height: 2.5em;
border-radius: 0.35em;
background: color-mix(in srgb, var(--c) 30%, #2b2d33);
transform: rotateY(20deg);
transition: transform 0.22s cubic-bezier(0.5, 0, 0.3, 1.5), background-color 0.2s ease, box-shadow 0.3s ease;
}
/* two shading layers, crossfaded: the pressed half always reads darker */
.tgl-rocker-paddle::before,
.tgl-rocker-paddle::after {
content: "";
position: absolute;
inset: 0;
border-radius: inherit;
transition: opacity 0.22s ease;
}
.tgl-rocker-paddle::before { background: linear-gradient(90deg, rgb(255 255 255 / 0.28), rgb(255 255 255 / 0.05) 49.5%, rgb(0 0 0 / 0.25) 50.5%, rgb(0 0 0 / 0.45)); }
.tgl-rocker-paddle::after {
background: linear-gradient(90deg, rgb(0 0 0 / 0.45), rgb(0 0 0 / 0.25) 49.5%, rgb(255 255 255 / 0.05) 50.5%, rgb(255 255 255 / 0.28));
opacity: 0;
}
.tgl-rocker-i,
.tgl-rocker-o {
position: relative;
z-index: 1;
display: grid;
place-items: center;
}
.tgl-rocker-i::before {
content: "";
width: 0.18em;
height: 0.95em;
border-radius: 0.1em;
background: rgb(255 255 255 / 0.9);
}
.tgl-rocker-o::before {
content: "";
width: 0.9em;
height: 0.9em;
border: 0.17em solid rgb(255 255 255 / 0.9);
border-radius: 50%;
}
.tgl-rocker input:checked + .tgl-rocker-bezel .tgl-rocker-paddle {
background: var(--c);
box-shadow: 0 0 0.9em color-mix(in srgb, var(--c) 55%, transparent);
transform: rotateY(-20deg);
}
.tgl-rocker input:checked + .tgl-rocker-bezel .tgl-rocker-paddle::before { opacity: 0; }
.tgl-rocker input:checked + .tgl-rocker-bezel .tgl-rocker-paddle::after { opacity: 1; }
.tgl-rocker input:focus-visible + .tgl-rocker-bezel {
outline: 2px solid var(--c);
outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
.tgl-rocker, .tgl-rocker *, .tgl-rocker::before, .tgl-rocker::after, .tgl-rocker *::before, .tgl-rocker *::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}
}Customizing this snippet
- Color: set
--tgl-coloron the element or a parent. Currently previewing#3b82f6. - Size: set
--tgl-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.