body {
  background: url('../img/fundo.jpeg') 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:30px;
}
.form-group.last { margin-bottom:0px; }