styles.css

/* resets and general styles */
* {
    margin: 0 auto;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
  }
  ::-moz-selection {
    color: #ffffff;
    background: #ff5722;
  }
  ::selection {
    color: #ffffff;
    background: #ff5722;
  }
  body {
    font: normal 16px "Roboto", sans-serif;
    position: absolute;
    height: 100%;
    width: 100%;
  }
  div.wrapper {
    width: calc(4 * 225px);
    margin: 0 auto;
  }
  span,
  a,
  strong {
    font-weight: 700;
  }
  a {
    transition: 0.2s;
    text-decoration: none;
    color: #787878;
    border-bottom: 1px solid #607d8b;
  }
  a:hover {
    transition: 0.2s;
    color: #ff5722;
  }
  /* page layout */
  /* header */
  header {
    width: 100%;
    height: 60%;
    background: #607d8b;
  }
  /* section */
  /* /* section{
      width: 100%;
      height: 50%;
  } */
  section h1,
  section p.meta {
    color: #ffffff;
    margin-bottom: 15px;
  }
  section hgroup {
    margin-top: -360px;
  }
  section p.numbers {
    font-size: 6em;
  }
  section p.meta,
  section p.strings {
    font-size: 1.5em;
  }
  section h1 {
    font-size: 4.5em;
  }
  
  /* countdown styles */
  div#countdown {
    color: #353535;
  }
  div#countdown p {
    width: 100%;
    display: inline-block;
    text-align: center;
  }
  p.numbers {
    width: 100%;
    height: 85%;
    background: #ffffff;
    margin-top: -25px;
    padding-top: 100px;
  }
  p.strings {
    width: 100%;
    height: auto;
    padding: 30px 0;
    background: #ff5722;
    color: #ffffff;
  }
  div.cd-box {
    width: 210px;
    height: 360px;
    background: #ffffff;
    float: left;
    padding: 25px 0 0 0;
    margin: 30px 15px 0 0;
    -webkit-box-shadow: 5px 6px 9px 1px rgba(53, 53, 53, 0.5);
    -moz-box-shadow: 5px 6px 9px 1px rgba(53, 53, 53, 0.5);
    box-shadow: 5px 6px 9px 1px rgba(53, 53, 53, 0.5);
  }
  
  .btn {
    margin-top: 20px;
    padding: 15px 30px;
    font-size: 25px;
    background: #ff5722;
    color: #ffffff;
    border: 1px solid #ff5722;
  }
  
  .btns-container {
    text-align: center;
  }
  
  .modal {
    background-color: #fff;
    width: 300px;
    height: 500px;
    border: 1px solid #000;
    border-radius: 20px;
    position: fixed;
    bottom: -500px;
    right: 0;
    display: flex;
  }
  
  .chat {
    margin: auto;
  }
  
  .modal_show {
    bottom: 0;
  }