Neumorphism Button
A soft UI button that sits raised on its own surface and sinks into it on hover. Two box-shadows swap from outset to inset, listed in both states so they interpolate.
Also known as: neumorphic button css, soft ui button, inset shadow button.
HTML
<div class="btn-neumorphic">
<button class="btn-neumorphic-btn">
<svg viewBox="0 0 24 24" fill="currentColor" aria-hidden="true"><path d="M8 5.5v13l10.5-6.5z"/></svg>
Play
</button>
</div>CSS
.btn-neumorphic {
--c: var(--btn-color, #3b82f6);
--surface: color-mix(in srgb, var(--c) 6%, #e3e7ee);
--low: color-mix(in srgb, var(--c) 14%, #a4aec0);
font-size: var(--btn-size, 18px);
display: inline-grid;
place-items: center;
padding: 1.8em 3em;
border-radius: 1.25em;
background: var(--surface);
}
.btn-neumorphic-btn {
display: inline-flex;
align-items: center;
gap: 0.5em;
padding: 0.85em 1.8em;
border: 0;
border-radius: 0.9em;
background: var(--surface);
color: color-mix(in srgb, var(--c) 35%, #5b6475);
font: 600 1em/1.2 system-ui, sans-serif;
cursor: pointer;
box-shadow:
0.4em 0.4em 0.8em var(--low),
-0.4em -0.4em 0.8em #fff,
inset 0 0 0 transparent,
inset 0 0 0 transparent;
transition: box-shadow 0.3s ease, color 0.3s ease;
}
.btn-neumorphic-btn svg {
width: 1em;
height: 1em;
transition: transform 0.3s ease;
}
.btn-neumorphic-btn:is(:hover, :focus-visible) {
color: var(--c);
box-shadow:
0 0 0 transparent,
0 0 0 transparent,
inset 0.25em 0.25em 0.5em var(--low),
inset -0.25em -0.25em 0.5em #fff;
}
.btn-neumorphic-btn:is(:hover, :focus-visible) svg { transform: scale(0.9); }
@media (prefers-reduced-motion: reduce) {
.btn-neumorphic, .btn-neumorphic *, .btn-neumorphic::before, .btn-neumorphic::after, .btn-neumorphic *::before, .btn-neumorphic *::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}
}Customizing this snippet
- Color: set
--btn-coloron the element or a parent. Currently previewing#3b82f6. - Base size: set
--btn-size. Every other dimension is inem, so the whole thing scales together. Currently previewing18px. - 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.