Webleb - UI Elements - CSS Loading Animation HTML Structure

/* css_foundation */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

body {
      background:url("./thumb.jpg") no-repeat center center;
      background-color: #0b0b0b;
      background-size: cover;
      display: flex;
      align-items: center;
      justify-content: center;
      height: 100vh;
      overflow: hidden;
    }

.codigo {
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      background: #272822;
      color: #F8F8F2;
      font-family: 'Consolas', 'Monaco', monospace;
      font-size: 18px;
      padding: 20px;
      border-radius: 8px;
      white-space: pre-line;
      text-align: left;
      line-height: 1.6;
      max-height: 25%;
      max-width: 75%;
      width: 75%;
      height: 25%;
      top:15%;
      overflow-y: hidden;
       box-shadow: -8px 10px 18px rgba(0, 0, 0, 0.55);
    }

.selector       { color: #F92672; }
    .property       { color: #66D9EF; }
    .value-number   { color: #AE81FF; }
    .value-string   { color: #E6DB74; }
    .value-color    { color: #A6E22E; }
    .function       { color: #A6E22E; }

.animation-container {
      position: absolute;
      top: 75%;
      left: 50%;
      transform: translate(-50%, -50%);
      display: flex;
      align-items: center;
      justify-content: center;
      width: 100%;
      height: 50%;
      overflow: hidden;
      background: transparent;
    }

.loading-element {
      width: 20%;
      height: 80%;
      background-color: #333;
      border-radius: 50%;
      animation: loading-animation 1s linear infinite;
      position: relative;
    }

.layer-1 {
      width: 100%;
      height: 0;
      background-color: #555;
      position: absolute;
      bottom: 0;
      animation: pulse 2s ease-out;
      transform-origin: center bottom;
    }

.layer-2 {
      width: 90%;
      height: 70%;
      background-color: #777;
      position: absolute;
      bottom: 20%;
      left: 5%;
      animation: wave 4s ease-in-out;
      transform-origin: center bottom;
    }

.layer-3 {
      width: 80%;
      height: 60%;
      background-color: #999;
      position: absolute;
      bottom: 40%;
      left: 10%;
      animation: ripple 3s ease-out;
      transform-origin: center bottom;
    }

.loading-element::before {
      content: "";
      display: block;
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 10%;
      height: 20%;
      background-color: #000;
      border-radius: 50%;
      box-shadow: 0 0 10px #000;
      animation: zoom 2s ease-out;
    }

.loading-element::after {
      content: "";
      display: block;
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 5%;
      height: 10%;
      background-color: #000;
      border-radius: 50%;
      box-shadow: 0 0 5px #000;
      animation: pulse-out 2s ease-out;
      animation-delay: 1s;
    }

@keyframes loading-animation {
      0% {
        transform: scale(1);
      }
      100% {
        transform: scale(2);
      }
    }

@keyframes pulse {
      0% {
        height: 0;
      }
      20% {
        height: 10%;
      }
      40% {
        height: 20%;
      }
      60% {
        height: 15%;
      }
      80% {
        height: 10%;
      }
      100% {
        height: 0;
      }
    }

@keyframes wave {
      0% {
        transform: scaleY(0);
      }
      20% {
        transform: scaleY(1.2);
      }
      40% {
        transform: scaleY(0.9);
      }
      60% {
        transform: scaleY(1.1);
      }
      80% {
        transform: scaleY(0.8);
      }
      100% {
        transform: scaleY(0);
      }
    }

@keyframes ripple {
      0% {
        transform: scale(0);
      }
      20% {
        transform: scale(1.2);
      }
      40% {
        transform: scale(0.9);
      }
      60% {
        transform: scale(1.1);
      }
      80% {
        transform: scale(0.8);
      }
      100% {
        transform: scale(0);
      }
    }

@keyframes zoom {
      0% {
        width: 5%;
        height: 10%;
        box-shadow: 0 0 5px #000;
      }
      100% {
        width: 10%;
        height: 20%;
        box-shadow: 0 0 10px #000;
      }
    }

@keyframes pulse-out {
      0% {
        height: 5%;
        width: 5%;
      }
      100% {
        height: 0%;
        width: 0%;
      }
    }

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HTML

CSS

/* css_foundation */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

.loading-element {
      width: 20%;
      height: 80%;
      background-color: #333;
      border-radius: 50%;
      animation: loading-animation 1s linear infinite;
      position: relative;
    }

@keyframes loading-animation {
      0% {
        transform: scale(1);
      }
      100% {
        transform: scale(2);
      }
    }

@keyframes pulse-out {
      0% {
        height: 5%;
        width: 5%;
      }
      100% {
        height: 0%;
        width: 0%;
      }
    }