JavaScript30/01 - JavaScript Drum Kit/style.css at 1411c4a00d04fff24799fc5f6f0764584fe76745 · wesbos/JavaScript30 · GitHub

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html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  font-family: 'Poppins', sans-serif;
  background: radial-gradient(circle at center, #0f0f0f, #000);
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: auto; /* allow scrolling if needed */
}

/* Responsive circular layout */
.keys {
  position: relative;
  width: min(80vw, 500px);
  height: min(80vw, 500px);
  margin: auto;
}

.key {
  position: absolute;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  border: 0.4rem solid #00ffff;
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-shadow: 0 0 1rem #00ffff;
  box-shadow: 0 0 2rem rgba(0, 255, 255, 0.2);
  transform-origin: center center;
  transition: border-color 0.1s ease, box-shadow 0.1s ease, background 0.1s ease;
}

/* Circular positions — still fixed */
.key:nth-child(1) { transform: rotate(0deg) translate(calc(min(80vw, 500px) / 2.5)) rotate(0deg); }
.key:nth-child(2) { transform: rotate(40deg) translate(calc(min(80vw, 500px) / 2.5)) rotate(-40deg); }
.key:nth-child(3) { transform: rotate(80deg) translate(calc(min(80vw, 500px) / 2.5)) rotate(-80deg); }
.key:nth-child(4) { transform: rotate(120deg) translate(calc(min(80vw, 500px) / 2.5)) rotate(-120deg); }
.key:nth-child(5) { transform: rotate(160deg) translate(calc(min(80vw, 500px) / 2.5)) rotate(-160deg); }
.key:nth-child(6) { transform: rotate(200deg) translate(calc(min(80vw, 500px) / 2.5)) rotate(-200deg); }
.key:nth-child(7) { transform: rotate(240deg) translate(calc(min(80vw, 500px) / 2.5)) rotate(-240deg); }
.key:nth-child(8) { transform: rotate(280deg) translate(calc(min(80vw, 500px) / 2.5)) rotate(-280deg); }
.key:nth-child(9) { transform: rotate(320deg) translate(calc(min(80vw, 500px) / 2.5)) rotate(-320deg); }

kbd {
  font-size: 2.8rem;
}

.sound {
  font-size: 1rem;
  color: #00ffff;
  text-transform: uppercase;
  letter-spacing: .1rem;
}

/* Glow animation, replays on every press */
.playing {
  animation: crazyPulse 0.4s ease forwards;
}

@keyframes crazyPulse {
  0% {
    border-color: #00ffff;
    box-shadow: 0 0 2rem #00ffff;
    background: rgba(0, 0, 0, 0.5);
    transform: scale(1);
  }
  50% {
    border-color: #ff00ff;
    box-shadow: 0 0 3rem #ff00ff, 0 0 6rem #00ffff;
    background: radial-gradient(circle, #ff00ff 10%, #000 90%);
    transform: scale(1.4);
  }
  100% {
    border-color: #00ffff;
    box-shadow: 0 0 2rem #00ffff;
    background: rgba(0, 0, 0, 0.5);
    transform: scale(1);
  }
}