Webleb - fragmentos de código

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Andev Web</title>
    <link rel="stylesheet" href="style.css">
</head>

</html>

body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #212121;
  }
  .plane-switch {
    --dot: #fff;
    --street: #6B6D76;
    --street-line: #A8AAB4;
    --street-line-mid: #C0C2C8;
    --sky-1: #60A7FA;
    --sky-2: #2F8EFC;
    --light-1: rgba(255, 233, 0, 1);
    --light-2: rgba(255, 233, 0, .3);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
  }
  
  .plane-switch input {
    display: none;
  }
  
  .plane-switch input + div {
    -webkit-mask-image: -webkit-radial-gradient(white, black);
    position: relative;
    overflow: hidden;
    width: 50px;
    height: 25px;
    padding: 1px;
    border-radius: 13px;
    background: linear-gradient(90deg, var(--street) 0%, var(--street) 25%, var(--sky-1) 75%, var(--sky-2) 100%) left var(--p, 0%) top 0;
    background-position-x: var(--p, 0%);
    background-size: 400% auto;
    transition: background-position 0.6s;
  }
  
  .plane-switch input + div:before, .plane-switch input + div:after {
    content: "";
    display: block;
    position: absolute;
    transform: translateX(var(--s, 0));
    transition: transform 0.3s;
  }
  
  .plane-switch input + div:before {
    width: 42px;
    right: 2px;
    top: 4px;
    height: 1px;
    background: var(--street-line);
    box-shadow: 0 16px 0 0 var(--street-line);
  }
  
  .plane-switch input + div:after {
    width: 2px;
    height: 2px;
    border-radius: 50%;
    left: 23px;
    top: 1px;
    -webkit-animation: lights2 2s linear infinite;
    animation: lights2 2s linear infinite;
    box-shadow: inset 0 0 0 2px var(--light-1), 0 21px 0 var(--light-1), 8px 0 0 var(--light-2), 8px 21px 0 var(--light-2), 16px 0 0 var(--light-2), 16px 21px 0 var(--light-2);
  }
  
  .plane-switch input + div span {
    display: block;
    position: absolute;
  }
  
  .plane-switch input + div span.street-middle {
    top: 12px;
    left: 21px;
    width: 3px;
    height: 1px;
    transform: translateX(var(--s, 0));
    background: var(--street-line-mid);
    box-shadow: 5px 0 0 var(--street-line-mid), 10px 0 0 var(--street-line-mid), 15px 0 0 var(--street-line-mid), 20px 0 0 var(--street-line-mid), 25px 0 0 var(--street-line-mid);
    transition: transform 0.3s;
  }
  
  .plane-switch input + div span.cloud {
    width: 12px;
    height: 4px;
    border-radius: 2px;
    background: #fff;
    position: absolute;
    top: var(--ct, 8px);
    left: 100%;
    opacity: var(--co, 0);
    transition: opacity 0.3s;
    -webkit-animation: clouds2 2s linear infinite var(--cd, 0s);
    animation: clouds2 2s linear infinite var(--cd, 0s);
  }
  
  .plane-switch input + div span.cloud:before, .plane-switch input + div span.cloud:after {
    content: "";
    position: absolute;
    transform: translateX(var(--cx, 0));
    border-radius: 50%;
    width: var(--cs, 5px);
    height: var(--cs, 5px);
    background: #fff;
    bottom: 1px;
    left: 1px;
  }
  
  .plane-switch input + div span.cloud:after {
    --cs: 6px;
    --cx: 4px;
  }
  
  .plane-switch input + div span.cloud.two {
    --ct: 20px;
    --cd: 1s;
    opacity: var(--co-2, 0);
  }
  
  .plane-switch input + div div {
    display: table;
    position: relative;
    z-index: 1;
    padding: 5px;
    border-radius: 50%;
    background: var(--dot);
    transform: translateX(var(--x, 0));
    transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.35, 1.2);
  }
  
  .plane-switch input + div div svg {
    width: 13px;
    height: 13px;
    display: block;
    color: var(--c, var(--street));
    transition: color 0.6s;
  }
  
  .plane-switch input:checked + div {
    --p: 100%;
    --x: 25px;
    --s: -50px;
    --c: var(--sky-2);
    --co: .8;
    --co-2: .6;
  }
  
  @keyframes lights2 {
    20%, 30% {
      box-shadow: inset 0 0 0 2px var(--light-2), 0 21px 0 var(--light-2), 8px 0 0 var(--light-1), 8px 21px 0 var(--light-1), 16px 0 0 var(--light-2), 16px 21px 0 var(--light-2);
    }
  
    55%, 65% {
      box-shadow: inset 0 0 0 2px var(--light-2), 0 21px 0 var(--light-2), 8px 0 0 var(--light-2), 8px 21px 0 var(--light-2), 16px 0 0 var(--light-1), 16px 21px 0 var(--light-1);
    }
  
    90%, 100% {
      box-shadow: inset 0 0 0 2px var(--light-1), 0 21px 0 var(--light-1), 8px 0 0 var(--light-2), 8px 21px 0 var(--light-2), 16px 0 0 var(--light-2), 16px 21px 0 var(--light-2);
    }
  }
  
  @keyframes clouds2 {
    97% {
      transform: translateX(-72px);
      visibility: visible;
    }
  
    98%, 100% {
      visibility: hidden;
    }
  
    99% {
      transform: translateX(-72px);
    }
  
    100% {
      transform: translateX(0);
    }
  }

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HTML

CSS

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Andev Web</title>
    <link rel="stylesheet" href="style.css">
</head>

</html>