Googly Eyes Toggle
A pair of googly eyes as the knob: when it slides, the pupils lag behind, swing past and settle looking the new way, like real googly eyes. The swing is one keyframe on each pupil.
Also known as: eyes follow toggle css, cute eyes switch, googly eyes animation.
HTML
<label class="tgl-googly-eyes-toggle">
<input type="checkbox" role="switch" aria-label="Look right">
<span class="tgl-googly-eyes-toggle-track" aria-hidden="true">
<span class="tgl-googly-eyes-toggle-knob">
<span class="tgl-googly-eyes-toggle-eye"></span>
<span class="tgl-googly-eyes-toggle-eye"></span>
</span>
</span>
</label>CSS
.tgl-googly-eyes-toggle {
--c: var(--tgl-color, #3b82f6);
font-size: var(--tgl-size, 24px);
position: relative;
display: inline-flex;
align-items: center;
cursor: pointer;
-webkit-tap-highlight-color: transparent;
}
.tgl-googly-eyes-toggle input {
position: absolute;
inset: 0;
width: 100%;
height: 100%;
margin: 0;
opacity: 0;
cursor: pointer;
z-index: 1;
}
.tgl-googly-eyes-toggle-track {
position: relative;
display: block;
width: 6.8em;
height: 2.6em;
border-radius: 1.3em;
background: color-mix(in srgb, currentColor 14%, transparent);
transition: background-color 0.35s ease;
}
.tgl-googly-eyes-toggle-knob {
position: absolute;
top: 0.35em;
left: 0.35em;
display: flex;
transition: transform 0.5s cubic-bezier(0.6, 0, 0.3, 1);
}
.tgl-googly-eyes-toggle-eye {
position: relative;
width: 1.9em;
height: 1.9em;
border-radius: 50%;
background: #fff;
box-shadow: inset 0 0 0 0.06em #d1d5db, inset 0 -0.12em 0.2em rgba(0, 0, 0, 0.12), 0 0.08em 0.2em rgba(0, 0, 0, 0.25);
}
.tgl-googly-eyes-toggle-eye + .tgl-googly-eyes-toggle-eye { margin-left: 0.05em; }
.tgl-googly-eyes-toggle-eye::after {
content: "";
position: absolute;
top: calc(50% - 0.475em);
left: calc(50% - 0.475em);
width: 0.95em;
height: 0.95em;
border-radius: 50%;
background: radial-gradient(circle at 35% 32%, #fff 0 0.1em, #111827 0.11em);
transform: translate(-0.3em, 0.22em);
transition: transform 0.7s cubic-bezier(0.3, 1.8, 0.4, 1);
}
.tgl-googly-eyes-toggle-eye + .tgl-googly-eyes-toggle-eye::after { transition-delay: 0.05s; }
.tgl-googly-eyes-toggle input:checked + .tgl-googly-eyes-toggle-track { background: var(--c); }
.tgl-googly-eyes-toggle input:checked + .tgl-googly-eyes-toggle-track .tgl-googly-eyes-toggle-knob { transform: translateX(2.25em); }
.tgl-googly-eyes-toggle input:checked + .tgl-googly-eyes-toggle-track .tgl-googly-eyes-toggle-eye::after {
transform: translate(0.3em, 0.22em);
transition: none;
animation: tgl-googly-eyes-toggle-swing 0.9s ease-out;
}
.tgl-googly-eyes-toggle input:checked + .tgl-googly-eyes-toggle-track .tgl-googly-eyes-toggle-eye + .tgl-googly-eyes-toggle-eye::after {
animation-duration: 1s;
}
/* the pupil lags as the eyes set off, swings past, then settles */
@keyframes tgl-googly-eyes-toggle-swing {
0% { transform: translate(-0.3em, 0.22em); }
25% { transform: translate(-0.36em, -0.05em); }
55% { transform: translate(0.36em, 0.04em); }
75% { transform: translate(0.14em, 0.3em); }
100% { transform: translate(0.3em, 0.22em); }
}
.tgl-googly-eyes-toggle input:focus-visible + .tgl-googly-eyes-toggle-track {
outline: 2px solid var(--c);
outline-offset: 0.2em;
}
@media (prefers-reduced-motion: reduce) {
.tgl-googly-eyes-toggle, .tgl-googly-eyes-toggle *, .tgl-googly-eyes-toggle::before, .tgl-googly-eyes-toggle::after, .tgl-googly-eyes-toggle *::before, .tgl-googly-eyes-toggle *::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.