body {
  background-image: url("../img/cat.png");
  background-size: cover;
  background-position: center;
  background-repeat: repeat;
}

.form-container {
  max-width: 700px;
  margin: 0 auto;
}

.form-container iframe {
  width: 100%;
  height: 1200px;
}

@media (max-width: 700px) {
  .form-container {
    padding: 0;
    margin: 0 auto;
  }
  .form-container iframe {
    height: 1600px;
    padding: 0;
    margin: 0;
  }
}

.top-page {
  text-align: center;
  margin: 50px auto;
}