body {
    background: url(../images/BM_BannerHome_Vidaintegra_v1.png) no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
}

.panel-default {
    opacity: 0.9;
    margin-top: 280px;
}

.form-group.last {
    margin-bottom: 0px;
}