本文内容:页面镂空遮罩层、页面镂空遮罩引导层、图片镂空遮罩 常规遮罩层 <!DOCTYPE html> <html lang=en> <head> <meta charset=UTF-8> <meta name=viewport content=width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no> <title>Title</title> <style&g