body { 
  background: url(../../images/labfr1.jpg) 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; }

.navbar-nav li button {
    margin-top: 8px;
}

.navbar-brand {
    padding-top: 5px;
}

.navbar-brand img {
    height: 40px
}

.navbar-header {
    padding-left: 50px;
}

.navbar-right {
    padding-right: 50px;
}