dompdf / dompdf

                // Rule D

                $p = $block_parent;

                while ($p) {

                    if ($p->get_style()->page_break_inside === "avoid") {

                        Helpers::dompdf_debug("page-break", "parent->inside: avoid");

                        return false;

                    }

                    $p = $p->find_block_parent();

                }

                // To prevent cascading page breaks when a top-level element has

                // page-break-inside: avoid, ensure that at least one frame with

                    $table = Table::find_parent_table($frame);

                    $p = $table;

                    while ($p) {

                        if ($p->get_style()->page_break_inside === "avoid") {

                            Helpers::dompdf_debug("page-break", "parent->inside: avoid");

                            return false;

                        }

                        $p = $p->find_block_parent();

                    }

                    // Avoid breaking after the first row of a table

                    if ($table && $table->get_first_child() === $frame || $table->get_first_child()->get_first_child() === $frame) {