sticky-elements是jquery固定位置或粘性元素插件，它可以轻松让你的div保持在你想要的位置，可以使其永远保持在视窗内，粘性div可以设置动画效果显示。 view demo how to use
just include jquery, our stiky element plugin & you have juststikifiedit!
$(#grid4).stikify({floor: 100, rate: 1.6, cieling: -100, trans: true, rate: 3.4});
means:
the gridid - grid4will not go below 100px height, above -100px height, will get transparent with scroll. itsscroll-ratewill be3.4times normal scroll!
项目主页：http://www.open-open.com/lib/view/home/1426488567054