dompdf / dompdf

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

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

            // on the page before splitting.

            if ($parent->get_node()->nodeName === "body" && !$prev) {

                // We are the body's first child

                Helpers::dompdf_debug("page-break", "Body's first child.");

                return false;

            }

            // If the frame is the first block-level frame, use the value from

            // $frame's parent instead.

                    $prev = $prev->get_prev_sibling();

                }

                if ($block_parent->get_node()->nodeName === "body" && !$prev) {

                    // We are the body's first child

                    Helpers::dompdf_debug("page-break", "Body's first child.");

                    return false;

                }

                // Skip breaks on empty text nodes

                if ($frame->is_text_node() && $frame->get_node()->nodeValue == "") {