After I tested the affix on my website on the iPad, I found out that it does not work correctly, and I learned that this is a problem with iOS https://github.com/twbs/bootstrap/issues/11560 and now There is no easy solution for this.
IOS has problems calculating a fixed position when scrolling. Basically you don't get an updated fixed position until a little delay after stopping scrolling
Is there anything I can do to make it work, maybe some have already done some work?
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.youraffixelement { -webkit-transform: translate3d(0, 0, 0); transform: translate3d(0, 0, 0); }
iOs, .