.navbar-head{
    height: 100px;
}
.secondary-footer{
    height: 200px;
}
/* Costum margin */
.mb-100{
    margin-bottom: 100px;
}
.mt-100{
    margin-top: 100px;
}
.mb-50{
    margin-bottom: 50px;
}
.mt-50{
    margin-top: 50px;
}
.mb-20{
    margin-bottom: 20px;
}
.mt-20{
    margin-top: 20px;
}