@media (min-width: 768px) {
  .container {
    width: 750px;
  }
}

@media (min-width: 992px) {
  .container {
    width: 970px;
  }
}

@media (min-width: 1200px) {
  .container {
    width: 1200px;
  }
}

@media screen and (max-width: 600px) {
  body {
    padding-bottom: 40px;
  }

  .row {
    flex-direction: column;
    margin-top: 5px;
  }

  .col-25,
  .col-75,
  input[type="submit"] {
    width: 100%;
    flex-basis: 100%;
  }

  .heading {
    padding-top: 70px;
  }

  .heading h2 {
    font-size: 2rem;
    letter-spacing: 1.4px;
  }

  .heading p {
    font-size: 15px;
    letter-spacing: 1.5px;
    top: 62px;
  }
}