In last month or 2-3 weeks mobile version of russian wikipedia has become smaller (icons, labels , everything) and uncomfortable to read.
iOS 8.1 iPhone 5
The value of wgMFDeviceWidthMobileSmall (which is meant for feature phones) was increased from 280px to 320px resulting in this change.
- Decrease your browser screen resolution to 320px
- Verify the font size is the same as when its 720px.