Since Apple is an amazing company and designs their software well, you're going to have to compensate by heavily altering your design even though it works fine in every other modern browser. Think of iOS as the EI 6 of our time. It's sure to leave a legacy.
Now it's back to the drawing board for you and anyone else with this delightful technicality. You're going to enjoy wasting lots of time writing code to do things with basic functionality that selects and inputs are already supposed to do. That will ensure your pages can load just a smidgen slower whilst wasting a bunch of time and effort writing extra code for no reason at all.
Special thanks to Steve Jorbs.