body, html {
    background-image: url(imagens/fundo.jpg);
    background-repeat: no-repeat;
    background-position: center;
    overflow: hidden;
    height: 100%;
}

#wrap {
    width: 100%;
    height: 100%;
    display: flex;

}

#wrap .imagem {
    background-image: url("imagens/imagem.png");
    background-repeat: no-repeat;
    background-position: center center;
    background-size: contain;
    width: 100%;
    max-width: 100%;
    height: auto;
    margin: 50px;
}