In the UK, bars are either areas that serve alcoholic drinks within establishments such as hotels, restaurants, universities, or are a particular type of establishment which serves alcoholic drinks such as wine bars, "style bars", private membership only bars. However, the main type of establishment selling alcohol for consumption on the premises is the pub. Some bars are similar to nightclubs in that they feature loud music, subdued lighting, or operate a dress code and admissions policy, with inner city bars generally having door staff at the entrance.