添加着两行代码到页面中，页面间换页就能实现渐入渐出效果。
<META http-equiv=Page-Enter content=blendTrans(Duration=0.3)>
<META http-equiv=Page-Exit content=blendTrans(Duration=0.3)>
<META http-equiv=Page-Enter content=blendTrans(Duration=0.3)>
<META http-equiv=Page-Exit content=blendTrans(Duration=0.3)>
