递归矩形

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html

css

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html

css

html {
  background: #100010;
}

html,
body {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  align-content: center;
}

body {
  padding: 1em;
  flex: 1;
  flex-flow: wrap;
  overflow: hidden;
}

.container {
  width: 100%;
  max-width: 500px;
}

.flower {
  position: relative;
  background: rgba(54, 84, 99, 0.4);
  width: 100%;
  padding-top: 100%;
  border-radius: 10%;
  --delta-angle: 180deg;
}
.flower__leaf {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 50%;
  left: 50%;
  opacity: 0.5;
  border-radius: inherit;
}
.flower__leaf:nth-child(1) {
  --scale: 0.8504300948;
  --rotation: calc(1 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #374c72;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(2) {
  --scale: 0.7232313461;
  --rotation: calc(2 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #373c81;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(3) {
  --scale: 0.6150577022;
  --rotation: calc(3 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #4c3790;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(4) {
  --scale: 0.52306358;
  --rotation: calc(4 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #6f36a1;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(5) {
  --scale: 0.4448290099;
  --rotation: calc(5 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #9d34b2;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(6) {
  --scale: 0.378295977;
  --rotation: calc(6 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #c431b0;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(7) {
  --scale: 0.3217142836;
  --rotation: calc(7 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #d3318d;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(8) {
  --scale: 0.2735955087;
  --rotation: calc(8 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #dc3863;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(9) {
  --scale: 0.2326738544;
  --rotation: calc(9 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #e4453f;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(10) {
  --scale: 0.197872848;
  --rotation: calc(10 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #eb7e47;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(11) {
  --scale: 0.1682770249;
  --rotation: calc(11 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #f1b650;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(12) {
  --scale: 0.1431078462;
  --rotation: calc(12 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #f6ec5a;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(13) {
  --scale: 0.1217032192;
  --rotation: calc(13 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #d8fb65;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(14) {
  --scale: 0.1035000803;
  --rotation: calc(14 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #b3ff70;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(15) {
  --scale: 0.0880195831;
  --rotation: calc(15 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #95ff80;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(16) {
  --scale: 0.0748545024;
  --rotation: calc(16 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #8fff9e;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(17) {
  --scale: 0.0636585215;
  --rotation: calc(17 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #9effc8;
  animation: rotate 8s alternate infinite ease-in-out;
}
.flower__leaf:nth-child(18) {
  --scale: 0.0541371225;
  --rotation: calc(18 * var(--delta-angle));
  transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  background: #adffe9;
  animation: rotate 8s alternate infinite ease-in-out;
}
@keyframes rotate {
  from {
    transform: translate(-50%, -50%) rotate(var(--rotation)) scale(var(--scale));
  }
  to {
    transform: translate(-50%, -50%) rotate(90deg) scale(var(--scale));
  }
}

JavaScript

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