form#form2,
    form#form3,
    form#form4 {
      display: none;
    }
    
    span#backButton {
      display: block;
    }
    
    form {
      margin-left: 50px;
      margin-right: 50px;
      margin-bottom: 150px;
      font-family: "Times New Roman", Times, serif;
    }
    
    div.buttons {
      position: static;
      right: 0;
      margin-top: 50px;
    }
    
    body {
      font-size: 25px;
      width: 980px;
    }
    
    input[type="text"] {
      font-size: 25px;
    }
    
    input[type="text"]#dataString {
      display: none;
    }
    
    select {
      font-size: 25px;
    }
    
    h1 {
      font-size: 30px;
    }
    
    h2 {
      font-size: 30px;
    }
    
    tr {
      text-align: center;
    }
    
    td {
      padding-top: 10px;
      padding-bottom: 10px;
      margin-left: 10px;
      margin-right: 10px;
    }
    /* BUTTON STYLE */
    
    input[type="button"] {
      background-color: #ddd;
      text-align: center;
      font-size: 25px;
      height: 35px;
    }
    /* RADIO STYLE */
    
    [type="radio"] {
      border: 0;
      clip: rect(0 0 0 0);
      height: 1px;
      margin: -1px;
      overflow: hidden;
      padding: 0;
      position: absolute;
      width: 1px;
    }
    
    label {
      display: inline;
      cursor: pointer;
      line-height: 2.5;
      /* font-size: 1.5em; */
    }
    
    [type="radio"] + span {
      display: inline;
    }
    
    [type="radio"] + span:before {
      content: '';
      display: inline-block;
      width: 1em;
      height: 1em;
      vertical-align: -0.25em;
      border-radius: 1em;
      border: 0.15em solid #fff;
      box-shadow: 0 0 0 0.1em #000;
      margin-right: 0.75em;
      transition: 0.0s ease all;
    }
    
    [type="radio"]:checked + span:before {
      background: #72d232;
      box-shadow: 0 0 0 0.1em #000;
    }
    
    table.striped-columns tbody td:nth-of-type(even),
    table.striped-columns th:nth-of-type(even) {
      background: rgb(235, 227, 209);
    }