!!!(chrome作者亲测)!!!数据仅供参考
/*ipad*/
@media screen and (min-width:760px) and (max-width:1000px)
/*移动端*/
@media screen and (max-width:420px)
/*PC端*/
@media screen and (min-width:1204px)
/*移动端侧屏*/
@media screen and (orientation:landscape) and (max-width:667px)