@media (min-width: 1600px) {
  .container {
    max-width: 1600px;
  }
}

@media (max-width: 1440px) {
}
@media (max-width: 1200px) {
  .mainHeading {
    font-size: 70px;
  }
  form {
    padding: 30px 30px 20px 30px;
  }
}

@media (max-width: 992px) {
  body {
    padding: 20px;
  }
  .container {
    max-width: 100%;
    width: 100%;
  }
}
@media (max-width: 768px) {
  form {
    margin-right: auto;
  }
  #countdown {
    justify-content: center;
  }
}
@media (max-width: 576px) {
  .mainHeading {
    font-size: 50px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  #countdown {
    padding: 30px 0;
  }
  .timer .timer-inner {
    font-size: 25px;
  }
  .timer span {
    font-size: 12px;
  }
  form {
    padding: 20px;
    border-radius: 0;
  }
}