html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

.container {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #F5FF80;
  height: 100%;
}

.container img {
  max-width: 100%;
  max-height: 100%;
}

@media (max-width: 1024px) {
  .container img {
    height: auto;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .container img {
    height: 100%;
    width: auto;
  }

  #FondoSerotonina {
    background-image: url(../img/serotonina-portrait.png) !important;   
  }	

}