body {
    background: #000;
    color: #fff;
    text-align: center;
}

.logo {
    padding-top: 25px;
}

.main-caption {
    padding-top:  20px;
    padding-bottom: 20px;        
}

.active-part button.btn {
    margin-top:  10px;
    margin-bottom: 10px;
}

.list-group {
    text-align: left;
    
}