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Pure CSSMIT licensed

CSS Action Button Row with Radar Shockwave Click Feedback (Ripple Pulse)

An action button row that answers every click with a radar shockwave — concentric rings burst from the button and a reactor core pulses, giving weighty, satisfying tactile feedback. The impactful 'CSS radar shockwave click feedback button group' (a next-gen ripple) for confirm bars, tool palettes and control panels.

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The code

<section class="btn-24" aria-label="Radar shockwave action row demo">
  <div class="btn-24__wrap">
    <p class="btn-24__label">Reactor controls — click a button</p>
    <div class="btn-24__row" role="group" aria-label="Reactor controls">
      <button type="button" class="btn-24__btn btn-24__btn--core" style="--c:#37f5c5">Engage</button>
      <button type="button" class="btn-24__btn" style="--c:#5cc8ff">Scan</button>
      <button type="button" class="btn-24__btn" style="--c:#ffb84d">Vent</button>
      <button type="button" class="btn-24__btn btn-24__btn--danger" style="--c:#ff5470">Abort</button>
    </div>
  </div>
</section>
@property --btn-24-g {
  syntax: "<length>";
  inherits: false;
  initial-value: 0px;
}

.btn-24,
.btn-24 *,
.btn-24 *::before,
.btn-24 *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.btn-24 {
  font-family: 'Segoe UI',system-ui,sans-serif;
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(120% 120% at 50% 40%,#06201c,#03100e);
  padding: 44px 20px;
}

.btn-24__wrap {
  width: min(600px,100%);
}

.btn-24__label {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #4fd6b8;
  margin: 0 0 16px 2px;
}

.btn-24__row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-24__btn {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  border: 1.5px solid color-mix(in oklab,var(--c) 55%,#0a1a17);
  background: #0a1a17;
  color: var(--c);
  height: 54px;
  padding: 0 26px;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .02em;
  cursor: pointer;
  transition: color .18s,background .18s;
}

.btn-24__btn:hover {
  background: color-mix(in oklab,var(--c) 16%,#0a1a17);
  color: #eafffa;
}

.btn-24__btn::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 120%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle,color-mix(in oklab,var(--c) 70%,transparent) 0 40%,transparent 60%);
  translate: -50% -50%;
  scale: 0;
  opacity: 0;
  z-index: -1;
  pointer-events: none;
}

.btn-24__btn:active::after {
  animation: btn-24-wave .6s ease-out;
}

@keyframes btn-24-wave {
  0% {
    scale: 0;
    opacity: .65;
  }

  100% {
    scale: 2.6;
    opacity: 0;
  }
}

.btn-24__btn:active {
  background: color-mix(in oklab,var(--c) 26%,#0a1a17);
}

.btn-24__btn--core {
  box-shadow: 0 0 var(--btn-24-g) -2px var(--c);
  animation: btn-24-breathe 2.6s ease-in-out infinite;
}

@keyframes btn-24-breathe {
  0%,
    100% {
    --btn-24-g: 14px;
  }

  50% {
    --btn-24-g: 34px;
  }
}

.btn-24__btn--danger {
  color: #ff8098;
}

.btn-24__btn:focus-visible {
  outline: 3px solid var(--c);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .btn-24__btn--core {
    animation: none;
  }

  .btn-24__btn:active::after {
    animation: none;
  }
}
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Here's a working CSS Button Group from CodeFronts. Use it as-is or adapt to your framework. All classes are scoped under a unique prefix so the code won't collide with your existing styles. MIT licensed.
Demo: CSS Action Button Row with Radar Shockwave Click Feedback (Ripple Pulse)
Source: https://codefronts.com/components/css-button-groups/pulse-reactor/

An action button row that answers every click with a radar shockwave — concentric rings burst from the button and a reactor core pulses, giving weighty, satisfying tactile feedback. The impactful 'CSS radar shockwave click feedback button group' (a next-gen ripple) for confirm bars, tool palettes and control panels.
## HTML
```html
<section class="btn-24" aria-label="Radar shockwave action row demo">
  <div class="btn-24__wrap">
    <p class="btn-24__label">Reactor controls — click a button</p>
    <div class="btn-24__row" role="group" aria-label="Reactor controls">
      <button type="button" class="btn-24__btn btn-24__btn--core" style="--c:#37f5c5">Engage</button>
      <button type="button" class="btn-24__btn" style="--c:#5cc8ff">Scan</button>
      <button type="button" class="btn-24__btn" style="--c:#ffb84d">Vent</button>
      <button type="button" class="btn-24__btn btn-24__btn--danger" style="--c:#ff5470">Abort</button>
    </div>
  </div>
</section>
```
## CSS
```css
@property --btn-24-g {
  syntax: "<length>";
  inherits: false;
  initial-value: 0px;
}

.btn-24,
.btn-24 *,
.btn-24 *::before,
.btn-24 *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.btn-24 {
  font-family: 'Segoe UI',system-ui,sans-serif;
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(120% 120% at 50% 40%,#06201c,#03100e);
  padding: 44px 20px;
}

.btn-24__wrap {
  width: min(600px,100%);
}

.btn-24__label {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #4fd6b8;
  margin: 0 0 16px 2px;
}

.btn-24__row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-24__btn {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  border: 1.5px solid color-mix(in oklab,var(--c) 55%,#0a1a17);
  background: #0a1a17;
  color: var(--c);
  height: 54px;
  padding: 0 26px;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .02em;
  cursor: pointer;
  transition: color .18s,background .18s;
}

.btn-24__btn:hover {
  background: color-mix(in oklab,var(--c) 16%,#0a1a17);
  color: #eafffa;
}

.btn-24__btn::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 120%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle,color-mix(in oklab,var(--c) 70%,transparent) 0 40%,transparent 60%);
  translate: -50% -50%;
  scale: 0;
  opacity: 0;
  z-index: -1;
  pointer-events: none;
}

.btn-24__btn:active::after {
  animation: btn-24-wave .6s ease-out;
}

@keyframes btn-24-wave {
  0% {
    scale: 0;
    opacity: .65;
  }

  100% {
    scale: 2.6;
    opacity: 0;
  }
}

.btn-24__btn:active {
  background: color-mix(in oklab,var(--c) 26%,#0a1a17);
}

.btn-24__btn--core {
  box-shadow: 0 0 var(--btn-24-g) -2px var(--c);
  animation: btn-24-breathe 2.6s ease-in-out infinite;
}

@keyframes btn-24-breathe {
  0%,
    100% {
    --btn-24-g: 14px;
  }

  50% {
    --btn-24-g: 34px;
  }
}

.btn-24__btn--danger {
  color: #ff8098;
}

.btn-24__btn:focus-visible {
  outline: 3px solid var(--c);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .btn-24__btn--core {
    animation: none;
  }

  .btn-24__btn:active::after {
    animation: none;
  }
}
```

How this works

Each button holds a ::after ring that sits invisible until pressed. On :active, a one-shot animation scales the ring from a point to a wide, fading circle — the shockwave — while a ::before core does a quick brightness pulse. Unlike Material ripple (which needs JS to place the origin), this radar wave emanates from the button center purely in CSS.

An idle "reactor" glow breathes on the primary button via an @property-eased box-shadow so it feels alive before you even click. The shockwave is transform+opacity only and re-triggers on each press because :active restarts the animation, so repeated clicks feel responsive.

.btn:active::after{ animation:btn-24-wave .55s ease-out }
@keyframes btn-24-wave{ from{scale:0;opacity:.6} to{scale:2.6;opacity:0} }

Techniques used: :active-triggered one-shot shockwave ring · center-emanating radar (no JS origin math) · core brightness pulse · idle reactor glow breathing · transform/opacity-only for 60fps · reduced-motion removes the wave

Make it yours

  • Wave color/reach = the ring's color and the keyframe end scale.
  • Per-button accent via inline --c.
  • Idle breathing on/off by toggling the reactor animation.
  • Wave speed = the btn-24-wave duration.

Gotchas — read before shipping

  • :active re-triggers the animation on each press in most engines; if a browser coalesces rapid clicks, a tiny JS class-toggle guarantees replay.
  • Overflow must be hidden on the button so the ring clips to the shape.
  • Motion feedback should never be the only confirmation — pair with a state change or toast.
  • Disable the wave and breathing under prefers-reduced-motion.

Browser support

ChromeSafariFirefoxEdge
111+16.4+128+111+

Floor set by color-mix(), @property as this demo is written. The core technique itself goes back further — Chrome 85+.

The shockwave uses only transforms + opacity (universal). The @property-eased idle glow needs @property (Baseline 2024); it degrades to a static glow.

Techniques used in this demo

@propertyMDN ↗aspect-ratioMDN ↗role="" (ARIA)MDN ↗color-mix()MDN ↗radial-gradient()MDN ↗@keyframesMDN ↗

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