.MainMenu
{
    color:white;
}

:root {
    --bs-primary: #000000 !important; /* Ye grey color ka hex code hai. Aap apni pasand ka grey shade use kar sakte hain */
}

.bg-primary {
    background-color: #000000 !important;
}

.text-primary {
    color: #000000 !important;
}

.btn-primary {
    background-color: #000000 !important;
    border-color: #000000 !important;
}

.border-primary {
    border-color: #000000 !important;
}

.page-header {
    background-position: center top !important;
}