The abbreviation for "Asynchronous Javascript and XML" in English, Ajax is in itself a technique, but to be able to use it you should understand the philosophy [...]
"EXtensible HyperText Markup Language", or XHTML, is a markup language that has the same expressive capabilities as HTML, but with a tighter syntax. XHTML [...]
It is the fifth revision of the HTML standard (created in 1990 and standardized as HTML4 since 1997) and is in development since October 2011. objectives [...]