Query模拟便笺纸张的Form表单效果，作者：珞珈雨。其实用CSS也能实现，不过用jquery实现貌似更简单些，有兴趣的可参考。-Query Form Form simulate the effect of the paper notes, Author: Luojia rain. In fact, can also be achieved with CSS, but use jquery to achieve seemingly simpler, interested can refer to.