Last option in Drop-down is not getting hover effect in Google Chrome 32.0.1700.76 m
It is Bug . Issue 336348:Last option of select does not get highlighted on mouse hover
and also see Issue 334227:[Aura] Regression : Last dropdown item not highlighted on mouse-hover
It's not the problem with your code it's due to Google Chrome Bug.
With more than 3 options this bug comes into play.
This issue has been fixed in Google Chrome latest Version 32.0.1700.102 m.
Solution Update your Google Chrome to latest Version.
This is a known bug in Chrome 32.0.1700.76 m on Windows 7, and the devs are aware of, there is a quick fix:
- Right click the Chrome icon on your Windows Desktop
- Click Properties
- Select the Compatibility Tab
- Check "Disable Visual Themes"
Remember to restart your chrome to make it works.
However, the bug has been fixed in version 32.0.1700.102, released on 2014-01-27.