This is a known issue with iOS[0]. Basically, to keep you from having to zoom in when mobile browsing first took off, Mobile Safari would make the text bigger.

This is a known issue with iOS[0]. Basically, to keep you from having to zoom in when mobile browsing first took off, Mobile Safari would make the text bigger. [0]: https://stackoverflow.com/questions/3226001/some-font-sizes-rendered-larger-on-safari-iphone https://stackoverflow.com/questions/3226001/some-font-sizes-...