It's the "ht" in http & html
- Language Technology Group [PAR] Aug 26, 2010 ... URI stands for Uniform Resource Identifier, and it's the official name for those 
things you ... For example JPG or HTML or MP3 would be likely media types for ... 
URIs, such as http://localhost/... or file:///home/ht/.... , which identify... [DOC] [TLE] Tags used in HTML - CERN.ch [PAR] This is a list of tags used in the HTML language.