@media only screen and (max-width: 480px) {
  .btn-top-absolute {
    position: unset !important;
  }
}

@media only screen and (max-width: 768px) {

  .home-content,
  #about {
    text-align: center;
  }

  .contact-demo-form {
    margin: 110px auto 40px;
  }

  .content-login {
    margin: 110px auto 40px;

  }
}