css to add to a hocr file to make it easier to see the recognized regions.

hocr.css

.ocr_page, .ocr_carea, .ocr_par, .ocr_line, .ocrx_word {
    margin: 0px;
    padding: 0px;
}

.ocr_page {
    border: thin green dotted;
}

.ocr_carea {
    border: thin red dotted;
}

.ocr_par {
    border: thin blue dotted;
}

.ocr_line {
    border: thin yellow dotted;
}

.ocrx_word {
    border: thin purple dotted;
}