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 the Webpage advertising, does not affect the Webpage content, and users a high degree of concern, many called page website advertising, may also be called