The whole page is divided into two parts (bucket square), vertical (banner) and three parts.
Three feet 50 *100 50 * 50 25 *100 33.3 * 50
Big three feet 69 *100 50 * 69 34.5 *100 33.3 * 69
Four feet 69 *138 69 * 69 34.5 *138 46 * 69
Format: 69*69 (Doufang) or 34.5* 138 (banner)
Four feet and four minutes high: 34.5*69