body {
  position: relative;
  margin: 0;
  padding: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
body input {
  display: none;
}
body .toggleWrapper {
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .2s;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background-color: #000000;
  box-shadow: 0 20px 20px 0 rgba(0, 0, 81, 0.3);
}
body .toggleWrapper:active {
  width: 95px;
  height: 95px;
  box-shadow: 0 20px 20px 0 rgba(0, 0, 81, 0.3);
}
body .toggleWrapper:active .toggle {
  height: 17px;
  width: 17px;
}
body .toggleWrapper .toggle {
  transition: all 0.2s ease-in-out;
  height: 20px;
  width: 20px;
  background-color: transparent;
  border: 10px solid #fff;
  border-radius: 50%;
  cursor: pointer;
  animation: red .7s linear forwards;
}
body .background {
  position: absolute;
  height: 100vh;
  width: 100vw;
  background-color: #fef5f4;
}

body input:checked ~ .background {
    background-color: #f9faf7;
  }
  body input:checked + .toggleWrapper {
    background-color: #48e98a;
    box-shadow: 0 20px 20px 0 rgba(72, 233, 138, 0.3);
  }
  body input:checked + .toggleWrapper:active {
    box-shadow: 0 15px 15px 0 rgba(72, 233, 138, 0.5);
  }
  body input:checked + .toggleWrapper .toggle {
    width: 0;
    background-color: #fff;
    border-color: transparent;
    border-radius: 30px;
    animation: green .7s linear forwards !important;
  }
  body .footer {
    font-family: "Lucida Sans Unicode", "Lucida Grande", sans-serif;
    position: absolute;
    display: flex;
    flex-direction: column;
    left: calc(50% - 96px);
    bottom: 0;
    font-style: italic;
    font-size: 12px;
    color: #212121;
    background-color: white;
    padding: 15px 20px;
    border-radius: 5px 5px 0 0;
    box-shadow: 0 5px 15px 0 rgba(0, 0, 0, 0.25);
    text-align: center;
  }
  body .footer a {
    color: #222;
  }
  body .footer a:first-child {
    padding-bottom: 10px;
  }
  
  @keyframes red {
    0% {
      height: 30px;
      width: 0;
      border-width: 5px;
    }
    55% {
      height: 13px;
      width: 27px;
      border-width: 10px;
    }
    70% {
      height: 20px;
      width: 20px;
      border-width: 10px;
    }
    85% {
      height: 15px;
      width: 25px;
      border-width: 10px;
    }
    100% {
      height: 20px;
      width: 20px;
      border-width: 10px;
    }
  }
  @keyframes green {
    0% {
      height: 20px;
      width: 20px;
      border-width: 10px;
    }
    25%, 55%, 85% {
      height: 30px;
      width: 5px;
      border-width: 5px;
    }
    40%, 70%, 100% {
      height: 30px;
      width: 0;
      border-width: 5px;
    }
  }