HTML Tutorial - (HTML5 standard)
HTML: HTML (English: HyperText Markup Language), a standard for creating a web page markup language. You can use HTML to build their WEB site, HTML run on the browser, to resolve by the browser.
For Chinese web pages need to use <meta charset = "utf-8"> statement, otherwise it will be garbled.
Extension of the HTML document
.html
.htm
There is no difference between these two decorated name, it can be used.