[gideon_b]

This works very well:

@media screen and (-webkit-min-device-pixel-ratio:0) { select:focus, textarea:focus, input:focus { font-size: 16px; } }

It uses a css selector only available on iOS devices and enables a larger font to prevent zoom.

[Original concept] http://stackoverflow.com/a/16255670/209005

[colinbartlett]

There are quite a few good code snippets and suggestions for improvements to the CSS here.

I only wish there was some collaborative environment we could use to request changes to the code be pulled in and utilized.