??????????????????????棬?????????????????????????????????PC????????·??????????fixed??????????????????????????μ?iphone6p????????????????????????????????м????

?????????????????ios?????????bug?????????????????????????????£??????????
?????????е?????????iscroll.js??????????????????????????????????????????fixed??bug???????js??δ???е???С?????
???????
????ios???棬????????????? fixed ?????Ч??????????????????????????? absolute ??λ???????????泬??????????????Ч?? fixed ?????????????
???????????
??   ?????????