<style>
  .js .anime {
    opacity: 0;
    transform: translate3D(-50px, 0px, 0px);
  }

  .js .anime-init {
    opacity: 1;
    transform: translate3D(0px, 0px, 0px);
    transition: .3s all ease;
  }

  .box {
    width: 260px;
    height: 100px;
    border-radius: 5px;
    margin: 0 auto 20px auto;
  }

  .box p {
    padding-top: 100px;
    font-size: 24px;
    color: white;
    font-family: monaco;
  }

  #azul {
    background: #05ACED;
  }

  #verde {
    background: #8BC84C;
  }

  #roxo {
    background: #8844EE;
  }

  section {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px 0;
    text-align: center;
  }

  #mouse {
    display: block;
    width: 22px;
    height: 40px;
    border-radius: 20px;
    border: 4px solid #8844EE;
    text-align: center;
    position: fixed;
    left: 0px;
    right: 0px;
    bottom: 20px;
    margin: 0 auto;
  }

  #mouse::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 8px;
    position: relative;
    border-radius: 4px;
    background: #8844EE;
    animation-name: mouse;
    animation-duration: .7s;
    animation-iteration-count: infinite;
  }

  @keyframes mouse {
    from {
      top: 0px;
    }
    to {
      top: 6px;
    }
  }

  h1 {
    font-size: 14px;
    font-family: monaco;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: #8844EE;
    margin-bottom: 40px;
  }

  footer {
    text-align: center;
    margin-bottom: 120px;
  }

  #origamid {
    font-family: monaco;
    text-decoration: none;
    color: #84E;
    display: inline-block;
  }

  #origamid::after, #origamid::before {
    content: '';
    display: block;
    background: #84E;
    width: 0;
    height: 2px;
    border-radius: 4px;
    margin: 6px auto 6px auto;
    transition: all .2s ease;
  }

  #origamid:hover::after, #origamid:hover::before {
    width: 100%;
  }
</style>


<section>
  <h1>Animação por Scroll</h1>

  <div class="box anime" id="azul"></div>
  <div class="box anime" id="verde"></div>
  <div class="box anime" id="roxo"></div>
  <div class="box anime" id="azul"></div>
  <div class="box anime" id="verde"></div>
  <section class="page-section" id="quemsomos"></section>
  <div class="box anime" id="roxo"></div>
  <div class="box anime" id="azul"></div>
  <div class="box anime" id="verde"></div>
  <div class="box anime" id="roxo"></div>
  <div class="box anime" id="azul"></div>
  <div class="box anime" id="verde"></div>
  <div class="box anime" id="roxo"></div>
  <section class="page-section" id="produtos"></section>
  <div class="box anime" id="azul"></div>
  <div class="box anime" id="verde"></div>
  <div class="box anime" id="roxo"></div>
  <div class="box anime" id="azul"></div>
  <div class="box anime" id="verde"></div>
  <div class="box anime" id="roxo"></div>
  <div class="box anime" id="azul"></div>
  <div class="box anime" id="verde"></div>
  <div class="box anime" id="roxo"></div>
  <section class="page-section" id="contato"></section>

  <div class="box anime" id="azul"></div>
  <div class="box anime" id="verde"></div>
  <div class="box anime" id="roxo"></div>
</section>

<span id="mouse"></span>

<footer>
  <a id="origamid" href="https://www.origamid.com" target="_blank">mais em origamid.com</a>
</footer>
