I noticed this (Chrome 26, Windows 7) on the main site of Web Applications:
As seen above the info image is too close to the unanswered image on the sprite
rev 2013.4.8.61
- Firefox 19.0.2 - Windows 7
- Google Chrome 26.0.1410.43 - MacOSX 10.7.5
- Safari 6.0.3 (7536.28.10) - MacOSX 10.7.5