.vTable {
  height: 100vh;
  width: 100%;
  display: table;
  vertical-align: middle; }
  .vTable .vTable-cell {
    width: 100%;
    display: table-cell;
    vertical-align: middle; }

.form-holder {
  max-width: 500px;
  margin: 0 auto; }

#result {
  max-width: 500px;
  margin: 0 auto; }
  #result p {
    margin-bottom: 0; }

    .btn-primary {
        color: #fff;
        background-color: #2780e3;
        border-color: #2780e3;
    }
    .btn {
    display: inline-block;
    font-weight: 400;
    padding: 0.375rem 0.75rem;
    font-size: 0.9375rem;
    line-height: 1.5;
    border-radius: 0;
}

.form-control {
    display: block;
    width: 100%;
    height: calc(1.5em + 0.75rem + 2px);
    padding: 0.375rem 0.75rem;
    font-size: 0.9375rem;
    font-weight: 400;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #ced4da;
    border-radius: 0;
    -webkit-transition: border-color 0.15s ease-in-out, -webkit-box-shadow 0.15s ease-in-out;
    transition: border-color 0.15s ease-in-out, -webkit-box-shadow 0.15s ease-in-out;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out, -webkit-box-shadow 0.15s ease-in-out;
}