html>* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Open Sans';
  }
  body {
    background: rgb(247, 247, 247);
  }
  pre {
    background-color: rgb(235, 235, 235);
    border-radius: 5px;
    line-height: 1.6;
    font-size: 1rem;
    font-family: 'Roboto Mono', monospace;
  }

  #definition {
    font-size: 1.4rem;
    text-align: center;
    margin: 0 auto;
  }

  #definition>.text {
    color: rgb(7, 7, 7);
    line-height: 1.8;
  }

  #live-preview {
    position: relative;
    background: url('assets/background.jpg') repeat;
    background-size: contain;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .params {
    text-align: center;
    display: flex;
    justify-content: center;
    margin-top: 5rem;
    margin-bottom: 5rem;

  }

  .params>* {
    font-size: 1rem;
    display: flex;
    align-items: center;
    margin: 0 2rem;
    font-weight: 600;
    color: rgb(65, 65, 65);
  }

  .params>*>label {
    margin-right: 1rem;
  }

  #player {
    margin : 1rem 0;
    box-shadow: 0 0 .5rem .5rem rgba(43, 43, 43, 0.349);
  }

  h2 {
    margin: 3rem 0;
    padding-bottom: .5rem;
    border-bottom: 1px solid rgb(121, 121, 121);
  }
  h3 {
    margin: 2rem 0;
  }

  .main-container> * {
    max-width: 1200px;
    margin: 0 auto;
  }

  .features {
    margin: 0 auto;
    display: flex;
    justify-content: center;
  }

  ol>li {
    margin-top: 3rem;
    font-size: 1.2rem;
  }

  .var {
    color: rgb(32, 154, 202);
    font-weight: 600;
  }

  .key {
    color: orange;
  }

  .const {
    color: green;
  }

  .comment {
    color: rgb(102, 2, 2);
    font-weight: 600;
  }
  .footer {
    margin: 3rem 0;
    font-weight: thin;
    width: 100%;
    font-size: 1.2rem;
    text-align: center;
  }
  .usage {
    margin-top: 5rem;
  }