.btn-check:active + .btn.btn-primary, .btn-check:checked + .btn.btn-primary, .btn.btn-primary.active, .btn.btn-primary.show, .btn.btn-primary:active:not(.btn-active), .btn.btn-primary:focus:not(.btn-active), .btn.btn-primary:hover:not(.btn-active), .show > .btn.btn-primary {
    background-color: #c42d0a !important;
}

body {
    background: linear-gradient(rgba(67, 67, 67, 0.3), rgba(0, 0, 0, 0.1)), url(background.png);
    background-position: center top;
}