html, body {
      margin: 0;
      padding: 0;
      color: black;
    }
    .title {
      margin-top: 40px;
      padding: 30px 0px 15px 0px;
      text-align: center;
      background: rgb(247,247,247);
      color: #5c5955;
    }
    .title .logo-lt {
      position: absolute;
      left: 10%;
      top: 60px;
      width: 10%;
      max-width: 60px;
    }
    .title .logo-title {
      margin-bottom: 10px;
      width: 30%;
      max-width: 200px;
    }
    .title h4 {
      font-weight: 500;
      font-family: 'Nanum Gothic', sans-serif;
    }
    .title h4 small {
      margin-top: 15px;
      display: block;
    }
    .content {
      text-align: center;
    }
    .footer {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 10;
      background: rgb(53,53,53);
      text-align: center;
      padding: 10px 0 10px;
    }
    a.down-link {
      margin: 0;
      padding: 0;
      color: white;
      text-decoration: none;
    }
    a.down-link:hover, a.downlink:visited, a.down-link:active {
      text-decoration: none;
    }
    a.down-link img {
      width: 60%;
    }
    a.down-link .ver {
      margin: 0;
      padding: 0;
      font-size: 12px;
      color: #777;
    }
    .header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 10;
      height: 40px;
      background-color: white;
    }
    .btn-left {
      float: left;
      border-radius: 0;
      background-color: #4c6e40;
      color: white;
    }
    .btn-right {
      float: right;
      border-radius: 0;
      background-color: #424242;
      color: white;
    }
    .down-btn-font{
      font-size: 1.5rem;
      margin-bottom: 0;
    }