html, .fullscreen {
  display: flex;
  height: 100%;
  margin: 0;
  padding: 0;
  width: 100%;
}

#container {
    -webkit-font-smoothing: antialiased;
    font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
    font-size: 14px;
    color: #1e2a28;
    width: 100%;
    margin: auto;
}

.input-form {
    background: #ffffff;
    padding: 10px 25px;
    text-align: left;
}

.row {
    margin: 18px 0;
}

.input-file {
    padding: 10px;
    margin-bottom: 10px;
}

.btn-generate {
    padding: 10px 30px;
    border-radius: 3px;
    display: inline-block;
    cursor: pointer;
    color: #211c1c;
    background-color: #36de5c;
    border: #27a544 1px solid;

}

.preview {
    display: none;
    padding: 20px;
    border-radius: 3px;
    box-shadow: 0 1px 6px rgb(32 33 36/ 28%);
    border-color: rgba(223, 225, 229, 0);
}

.heading {
    text-align: center;
}

.form-label {
    display: block;
    margin-bottom: 5px;
}

.error {
    color: #ee0000;
    margin-left: 10px;
}