body {
    font-size: 24px;
}

.control-group {
    opacity: 1;
    -webkit-transition:  1s; /* Safari */
    transition:  2s;
    margin: 40px;
    text-align: center;
}

.control-group.deactivated {
    opacity: 0;

}

.control-group.done {
    opacity: 0.9;
}


.intro h1 {
    background:#cc0935;
    color: #fff;
}

.intro {
    background: #f0f0f0;
}
.intro .whitebg {
    background: #fff;

}

.intro .btn-primary {
    background: #2953ad;
    border-radius: 0;
}