footer a {
    color: black;
    text-decoration: none;
    transition: color 0.3s;
  }

  footer a:hover {
    color: #0096d2;
  }

  footer .email-text:hover {
    color: #0096d2;
  }

  footer {
    text-align: center;
    color: #777;
    width: 100%;
    bottom: 0;
    margin-top: auto;
  }

  footer img {
    max-width: 90px;
    height: auto;
    margin-bottom: 10px;
    padding-left: .5rem;
    padding-right: .5rem;
  }

  footer p {
    font-size: 16px;
    margin: 0;
  }

  footer::before {
    content: '\00a0';
    height: 5px;
    background-color: transparent;
  }

 .preregistro-text {
   top: 0px;
   text-align: center;
   font-size: 18px;
 }

 .preregistro-text:hover {
   cursor: pointer;
 }

 .cursos {
   position: absolute;
   top: 600px;
   text-align: center;
   font-size: 18px;
 }
  .btn-login {
    background: #1b8bcf;
  }

  .btn-login:hover {
    background: #0d6ca6;
    transition: .5s ease-in-out;
  }

  .footer {
    width: 100%;
    position: absolute;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    bottom: 0;
    z-index: -1;
  }

  .footer img {
    padding-left: .5rem;
    padding-right: .5rem;
  }

  @media screen and (max-width: 450px) {
    .footer {
      justify-content: center;
    }
  }

  @media screen and (min-width: 450px) and (max-width: 720px) {
    .footer {
      position: relative;
      margin-top: 2rem;
      justify-content: center;
 }

    .img-fluid {
      width: 250px;
      height: 100px;
    }
}

 @media screen and (min-width: 721px) and (max-width: 1000px) {
    .footer {
      position: absolute;
      margin-top: 2rem;
      justify-content: center;
      top: 560px;
     }
 }