.content-box {
    position: relative;
  }
  
  .content-box #download-file-with-password {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 180px 0 50px;
    background-image: linear-gradient(to bottom, rgba(255, 255, 255, 0), white 50%);
    background-image: -moz-linear-gradient(top, rgba(255, 255, 255, 0), white 50%);
    background-image: -webkit-linear-gradient(top, rgba(255, 255, 255, 0), white 50%);
    background-image: -o-linear-gradient(top, rgba(255, 255, 255, 0), white 50%)
  }
  
  .content-box #download-file-with-password-message {
    position: absolute;
    width: 100%;
    text-align: center;
    bottom: 0.7rem;
    color: red;
    font-weight: bold;
  }
  
  .human-check {
    display: none
  }
  
  .form-inline {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-flow: row wrap;
    flex-flow: row wrap;
    -ms-flex-align: center;
    align-items: center;
    max-width: 600px;
    margin: 0 auto;
  }
  
  .form-inline .form-control {
    display: inline-block;
    width: auto;
    vertical-align: middle;
  }
  
  .form-control {
    height: calc(1.5em + .75rem + 2px);
    padding: .375rem .75rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #ced4da;
    /* border-radius: .25rem; */
    transition: border-color .15s ease-in-out, box-shadow .15s ease-in-out;
    text-align: center;
  }
  
  .form-row {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .form-row>.col,
  .form-row>[class*=col-] {
    padding-right: 5px;
    padding-left: 5px;
  }
  
  .w-100 {
    width: 100% !important;
  }
  
  .col-9 {
    -ms-flex: 0 0 70%;
    flex: 0 0 70%;
    max-width: 70%;
  }
  
  .col-3 {
    -ms-flex: 0 0 20%;
    flex: 0 0 20%;
    max-width: 20%;
  }
  
  .btn {
    display: inline-block;
    font-weight: 400;
    color: #212529;
    text-align: center;
    vertical-align: middle;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    background-color: transparent;
    border: 1px solid transparent;
    padding: .375rem .75rem;
    font-size: 1rem;
    line-height: 1.5;
    /* border-radius: .25rem; */
    transition: color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out;
  }
  
  .btn-dark {
    color: #fff;
    background-color: #343a40;
    border-color: #343a40;
  }