<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Animated Loading</title>
    <style>
        * {
  border: 0;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
:root {
  --bg: #454954;
  --fg: #e3e4e8;
  --fg-t: rgba(227, 228, 232, 0.5);
  --primary1: #255ff4;
  --primary2: #5583f6;
  --trans-dur: 0.3s;
  font-size: calc(16px + (20 - 16) * (100vw - 320px) / (1280 - 320));
}

body {
  /* background-color: var(--bg);
  background-image: linear-gradient(
    135deg,
    rgba(0, 0, 0, 0),
    rgba(0, 0, 0, 0.2)
  ); */
  background-color: #23373E;
  color: var(--fg);
  font: 1em/1.5 "Varela Round", Helvetica, sans-serif;
  height: 100vh;
  min-height: 360px;
  display: grid;
  place-items: center;
  transition: background-color var(--trans-dur), color var(--trans-dur);
}
.pl {
  box-shadow: 2em 0 2em rgba(0, 0, 0, 0.2) inset,
    -2em 0 2em rgba(255, 255, 255, 0.1) inset;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transform: rotateX(30deg) rotateZ(45deg);
  width: 15em;
  height: 15em;
}
.pl,
.pl__dot {
  border-radius: 50%;
}
.pl__dot {
  animation-name: shadow;
  box-shadow: 0.1em 0.1em 0 0.1em black, 0.3em 0 0.3em rgba(0, 0, 0, 0.5);
  top: calc(50% - 0.75em);
  left: calc(50% - 0.75em);
  width: 1.5em;
  height: 1.5em;
}.pl__dot,
.pl__dot:before,
.pl__dot:after {
  animation-duration: 2s;
  animation-iteration-count: infinite;
  position: absolute;
}
.pl__dot:before,
.pl__dot:after {
  content: "";
  display: block;
  left: 0;
  width: inherit;
  transition: background-color var(--trans-dur);
}
.pl__dot:before {
  animation-name: pushInOut1;
  background-color: var(--bg);
  border-radius: inherit;
  box-shadow: 0.05em 0 0.1em rgba(255, 255, 255, 0.2) inset;
  height: inherit;
  z-index: 1;
}
.pl__dot:after {
  animation-name: pushInOut2;
  background-color: var(--primary1);
  border-radius: 0.75em;
  box-shadow: 0.1em 0.3em 0.2em rgba(255, 255, 255, 0.4) inset,
    0 -0.4em 0.2em #2e3138 inset, 0 -1em 0.25em rgba(0, 0, 0, 0.3) inset;
  bottom: 0;
  clip-path: polygon(0 75%, 100% 75%, 100% 100%, 0 100%);
  height: 3em;
  transform: rotate(-45deg);
  transform-origin: 50% 2.25em;
}

.pl__dot:nth-child(1) {
  transform: rotate(0deg) translateX(5em) rotate(0deg);
  z-index: 5;
}
.pl__dot:nth-child(1),
.pl__dot:nth-child(1):before,
.pl__dot:nth-child(1):after {
  animation-delay: 0s;
}

.pl__dot:nth-child(2) {
  transform: rotate(-30deg) translateX(5em) rotate(30deg);
  z-index: 4;
}
.pl__dot:nth-child(2),
.pl__dot:nth-child(2):before,
.pl__dot:nth-child(2):after {
  animation-delay: -0.1666666667s;
}

.pl__dot:nth-child(3) {
  transform: rotate(-60deg) translateX(5em) rotate(60deg);
  z-index: 3;
}
.pl__dot:nth-child(3),
.pl__dot:nth-child(3):before,
.pl__dot:nth-child(3):after {
  animation-delay: -0.3333333333s;
}

.pl__dot:nth-child(4) {
  transform: rotate(-90deg) translateX(5em) rotate(90deg);
  z-index: 2;
}
.pl__dot:nth-child(4),
.pl__dot:nth-child(4):before,
.pl__dot:nth-child(4):after {
  animation-delay: -0.5s;
}

.pl__dot:nth-child(5) {
  transform: rotate(-120deg) translateX(5em) rotate(120deg);
  z-index: 1;
}
.pl__dot:nth-child(5),
.pl__dot:nth-child(5):before,
.pl__dot:nth-child(5):after {
  animation-delay: -0.6666666667s;
}


.pl__dot:nth-child(6) {
  transform: rotate(-150deg) translateX(5em) rotate(150deg);
  z-index: 1;
}
.pl__dot:nth-child(6),
.pl__dot:nth-child(6):before,
.pl__dot:nth-child(6):after {
  animation-delay: -0.8333333333s;
}

.pl__dot:nth-child(7) {
  transform: rotate(-180deg) translateX(5em) rotate(180deg);
  z-index: 2;
}
.pl__dot:nth-child(7),
.pl__dot:nth-child(7):before,
.pl__dot:nth-child(7):after {
  animation-delay: -1s;
}

.pl__dot:nth-child(8) {
  transform: rotate(-210deg) translateX(5em) rotate(210deg);
  z-index: 3;
}
.pl__dot:nth-child(8),
.pl__dot:nth-child(8):before,
.pl__dot:nth-child(8):after {
  animation-delay: -1.1666666667s;
}

.pl__dot:nth-child(9) {
  transform: rotate(-240deg) translateX(5em) rotate(240deg);
  z-index: 4;
}
.pl__dot:nth-child(9),
.pl__dot:nth-child(9):before,
.pl__dot:nth-child(9):after {
  animation-delay: -1.3333333333s;
}

.pl__dot:nth-child(10) {
  transform: rotate(-270deg) translateX(5em) rotate(270deg);
  z-index: 5;
}
.pl__dot:nth-child(10),
.pl__dot:nth-child(10):before,
.pl__dot:nth-child(10):after {
  animation-delay: -1.5s;
}

.pl__dot:nth-child(11) {
  transform: rotate(-300deg) translateX(5em) rotate(300deg);
  z-index: 6;
}
.pl__dot:nth-child(11),
.pl__dot:nth-child(11):before,
.pl__dot:nth-child(11):after {
  animation-delay: -1.6666666667s;
}

.pl__dot:nth-child(12) {
  transform: rotate(-330deg) translateX(5em) rotate(330deg);
  z-index: 6;
}
.pl__dot:nth-child(12),
.pl__dot:nth-child(12):before,
.pl__dot:nth-child(12):after {
  animation-delay: -1.8333333333s;
}

.pl__text {
  font-size: 0.75em;
  max-width: 5rem;
  position: relative;
  text-shadow: 0 0 0.1em var(--fg-t);
  transform: rotateZ(-45deg);
}

/* Animations */
@keyframes shadow {
  from {
    animation-timing-function: ease-in;
    box-shadow: 0.1em 0.1em 0 0.1em black, 0.3em 0 0.3em rgba(0, 0, 0, 0.3);
  }
  25% {
    animation-timing-function: ease-out;
    box-shadow: 0.1em 0.1em 0 0.1em black, 0.8em 0 0.8em rgba(0, 0, 0, 0.5);
  }
  50%,
  to {
    box-shadow: 0.1em 0.1em 0 0.1em black, 0.3em 0 0.3em rgba(0, 0, 0, 0.3);
  }
}

@keyframes pushInOut1 {
  from {
    animation-timing-function: ease-in;
    background-color: var(--bg);
    transform: translate(0, 0);
  }
  25% {
    animation-timing-function: ease-out;
    background-color: var(--primary2);
    transform: translate(-71%, -71%);
  }
  50%,
  to {
    background-color: var(--bg);
    transform: translate(0, 0);
  }
}

@keyframes pushInOut2 {
  from {
    animation-timing-function: ease-in;
    background-color: var(--bg);
    clip-path: polygon(0 75%, 100% 75%, 100% 100%, 0 100%);
  }
  25% {
    animation-timing-function: ease-out;
    background-color: var(--primary1);
    clip-path: polygon(0 25%, 100% 25%, 100% 100%, 0 100%);
  }
  50%,
  to {
    background-color: var(--bg);
    clip-path: polygon(0 75%, 100% 75%, 100% 100%, 0 100%);
  }
}
    </style>
    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Varela+Round&amp;display=swap"
    />
  </head>
  <body>
    <div class="pl">
      <div class="pl__dot"></div>
      <div class="pl__dot"></div>
      <div class="pl__dot"></div>
      <div class="pl__dot"></div>
      <div class="pl__dot"></div>
      <div class="pl__dot"></div>
      <div class="pl__dot"></div>
      <div class="pl__dot"></div>
      <div class="pl__dot"></div>
      <div class="pl__dot"></div>
      <div class="pl__dot"></div>
      <div class="pl__dot"></div>
      <div class="pl__text">Loading…</div>
    </div>
  </body>
</html>
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