这种效果常被应用在网页广告中，不影响网页内容，而且用户关注度高，网站上很多叫做翻页广告，也可以叫书角广告。，web网页制作参考资料。-This effect is often used in web advertising does not affect the web content, and users concerned about the high, many called page ad on the site, also called the book corner advertis