body {
    background-image: url('../imagens_do_site/backgroud_index.jpeg');
    background-size: cover;
    background-repeat: no-repeat;
    height: 100vh;
}
    
@media (max-width: 768px) {
    body {
    background-image: url('../imagens_do_site/backgroud_mobile.jpg');
    }
}

.container #esqueci {
    float: right;
  }