.bg-black{
    background:#000 !important;
}

.mx-auto{
    margin:0 auto !important;
}

.font-size-op{
    font-size:3rem !important;
    margin:0 auto !important;
    font-weight:bold !important;
    margin-top:30px !important;
}

.py-5{
    padding-top:10% !important;
}