public function html()

    {

        return $this->builder()

            ->setTableId('table-id')

            ->setTableAttribute('class', 'table table-hover table-bordered align-middle table-sm')

            ->columns($this->getColumns())

            ->minifiedAjax()

            ->responsive(true)

            ->selectStyleSingle()

            ->lengthMenu([[ 30, 50, 100, -1], [ 30, 50, 100, 'All']])

            ->dom("<'row mb-3'<'col-md-4'l><'col-md-4 text-center'B><'col-md-4'f>>rt<'bottom'<'row'<'col-md-6'i><'col-md-6'p>>><'clear'>")

            ->buttons([

                Button::make('copy')

                    ->className('btn btn-secondary buttons-copy buttons-html5 btn-sm prints')

                    ->text('<i class="fa fa-copy"></i> Copy'),

                Button::make('csv')

                    ->className('btn btn-secondary buttons-csv buttons-html5 btn-sm prints')

                    ->text('<i class="fa fa-file-csv"></i> CSV')->exportOptions(['columns' => [0, 1, 2, 3, 4]]),

                Button::make('excel')

                    ->className('btn btn-secondary buttons-excel buttons-html5 btn-sm prints')

                    ->text('<i class="fa fa-file-excel"></i> Excel')

                    ->extend('excelHtml5')->exportOptions(['columns' => [0, 1, 2, 3, 4]]),

                Button::make('pdf')

                    ->className('btn btn-secondary buttons-pdf buttons-html5 btn-sm prints')

                    ->text('<i class="fa fa-file-pdf"></i> PDF')

                    ->extend('pdfHtml5')->exportOptions(['columns' => [0, 1, 2, 3, 4]]),

                Button::make('print')

                    ->className('btn btn-secondary buttons-print btn-sm prints')

                    ->text('<i class="fa fa-print"></i> Print')->exportOptions(['columns' => [0, 1, 2, 3, 4]]),

            ]);

    }

​