BootstrapAdmin/Bootstrap.Admin/wwwroot/css/theme-responsive.css

@media (min-width: 375px) {
    .form-check-input + span, .form-check-input + label {
        max-width: 146px;
    }
}

@media (min-width: 576px) {
    .form-group .form-control-url {
        width: calc(100% - 125px);
    }

    .form-inline .control-label {
        padding-top: 6px;
        padding-bottom: 6px;
    }

    .modal-lg {
        max-width: calc(90%);
    }

    .input-group.date {
        width: 186px;
    }
}

@media (min-width: 940px) {
    .btn span:last-child {
        display: inline;
    }

    .form-check-input + span, .form-check-input + label {
        max-width: 192px;
    }
}

@media (min-width: 992px) {
    .modal-lg {
        max-width: 900px;
    }
}