body {

    background-image: url('/img/login_background.png');
    background-size: cover;         /* cobre toda a tela */
    background-position: center;    /* centraliza */
    background-repeat: no-repeat;   /* não repete */
    background-attachment: fixed;   /* efeito parallax em desktop */
    min-height: 100vh;
    margin: 0;

}

.video-background {
    z-index: -999;
    position: fixed;
    top: 0;
    bottom: 0;
    width: 100%;
}