body {
    font: 400 15px/1.8 Lato, sans-serif;
    color: #777;
  }
  h3, h4 {
    margin: 10px 0 30px 0;
    letter-spacing: 2px;      
    font-size: 20px;
    color: #111;
  }
  .container {
    padding: 80px 120px;
  }

  .header {
    padding: 1px;
    text-align: center;
    background: #1abc9c;
    color: white;
    font-size: 14px;
  }
  
  table {
    border-collapse: collapse;
    width: 100%;
    margin-top: 10px;
  }
  
  table, th, td {
    border: 1px solid black;
    text-align: center;
  }

  th, td {
    padding: 0px 2px;
  }

  .btn {
    background-color: #4CAF50; /* Green */
    border: none;
    color: white;
    padding: 1px 6px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 13px;
    margin: 0px 4px;
    transition-duration: 0.4s;
    cursor: pointer;
  }
  
  .btn-success {
    background-color: white; 
    color: black; 
    border: 2px solid #4CAF50;
  }

  .none {
    text-align: center;
  }